logic: update Visual Studio plugin to support Visual Studio 2017

* changed description text of Visual Studio plugin
* changed plugin install targets to include VS 2017
* add license file with MIT license
* updated vsix for deployment

* implement wrapper for all used classes of VCProjectEngine.dll since you cannot just use the oldest version of this
  assembly (see https://stackoverflow.com/questions/44288050/typecast-fails-when-visual-studio-extension-uses-reference-to-older-assembly).
* improved serialization and deserialization of compile commands and compilation databases.
* updated used JSON package
* rename CommandObject to CompileCommand
* changed implementation to keep non-existent file paths in cdb
* made methods of SolutionParser non-static
* replace spaces with tabs

* added IntegrationTests project
* configured tests to simulate a new instance of VisualStudio
* added cinder as test project for integration tests
* remove all absolute paths from expected output of integration tests

fortune cookie message = A stranger will bring great meaning to your life.

ide_plugins/vs/vs2015/SourcetrailPlugin/packages/MSTest.TestAdapter.1.1.11/build/net45/MSTest.TestAdapter.props

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+	<Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+  </ItemGroup>
+</Project>

ide_plugins/vs/vs2015/SourcetrailPlugin/packages/MSTest.TestAdapter.1.1.11/build/net45/MSTest.TestAdapter.targets

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <EnableMSTestV2CopyResources Condition="$(EnableMSTestV2CopyResources) == ''">true</EnableMSTestV2CopyResources>
+  </PropertyGroup>
+
+  <Target Name="GetMSTestV2CultureHierarchy">
+    <!-- Only traversing 5 levels in the culture hierarchy. This is the maximum lenght for all cultures and should be sufficient to get to a culture name that maps to a resource folder we package. 
+    The root culture name for all cultures is invariant whose name is ''(empty) and the parent for invariant culture is invariant itself.(https://msdn.microsoft.com/en-us/library/system.globalization.cultureinfo.parent(v=vs.110).aspx.) 
+    So the below code should not break build in any case. -->
+    <ItemGroup>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Name)" />
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Name) != ''"/>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Name) != ''"/>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Name) != ''"/>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Parent.Name) != ''"/>
+    </ItemGroup>
+  </Target>
+
+  <!-- Copy resources over to $(TargetDir) if this is a localized build. -->
+  <Target Name="CopyMSTestV2Resources" BeforeTargets="PrepareForBuild" Condition="$(EnableMSTestV2CopyResources) == 'true'" DependsOnTargets="GetMSTestV2CultureHierarchy">
+    <ItemGroup>
+      <MSTestV2ResourceFiles Include="$(MSBuildThisFileDirectory)..\_common\%(CurrentUICultureHierarchy.Identity)\*resources.dll">
+        <CultureString>%(CurrentUICultureHierarchy.Identity)</CultureString>
+      </MSTestV2ResourceFiles>
+
+      <Content Include="@(MSTestV2ResourceFiles)" Condition="@(MSTestV2ResourceFiles) != ''">
+        <Link>%(MSTestV2ResourceFiles.CultureString)\%(Filename)%(Extension)</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        <Visible>False</Visible>
+      </Content>
+    </ItemGroup>
+  </Target>
+
+  <!-- This is required because an empty resource folder is left even though the files within are cleaned up. -->
+  <Target Name="CleanupMSTestV2ResourceFolders" AfterTargets="AfterClean" Condition="$(EnableMSTestV2CopyResources) == 'true'" DependsOnTargets="GetMSTestV2CultureHierarchy">
+    <ItemGroup>
+       <ResourceDirectories Include="$(TargetDir)%(CurrentUICultureHierarchy.Identity)" />
+    </ItemGroup>
+    <!-- RemoveDir does not throw if the folder does not exist. Continue on error - In any case do not fail build if this task fails(Warn and move on).-->
+    <RemoveDir Directories="@(ResourceDirectories)" ContinueOnError="true"/>
+  </Target>
+</Project>

ide_plugins/vs/vs2015/SourcetrailPlugin/packages/MSTest.TestAdapter.1.1.11/build/netstandard1.0/MSTest.TestAdapter.props

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\netstandard1.0\Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+  </ItemGroup>
+</Project>

ide_plugins/vs/vs2015/SourcetrailPlugin/packages/MSTest.TestAdapter.1.1.11/build/uap10.0/MSTest.TestAdapter.props

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\_common\Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+	<Content Include="$(MSBuildThisFileDirectory)..\uap10.0\Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll">
+      <Link>Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Visible>False</Visible>
+    </Content>
+  </ItemGroup>
+</Project>

ide_plugins/vs/vs2015/SourcetrailPlugin/packages/MSTest.TestAdapter.1.1.11/build/uap10.0/MSTest.TestAdapter.targets

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <EnableMSTestV2CopyResources Condition="$(EnableMSTestV2CopyResources) == ''">true</EnableMSTestV2CopyResources>
+  </PropertyGroup>
+
+  <Target Name="GetMSTestV2CultureHierarchy">
+    <!-- Only traversing 5 levels in the culture hierarchy. This is the maximum lenght for all cultures and should be sufficient to get to a culture name that maps to a resource folder we package. 
+    The root culture name for all cultures is invariant whose name is ''(empty) and the parent for invariant culture is invariant itself.(https://msdn.microsoft.com/en-us/library/system.globalization.cultureinfo.parent(v=vs.110).aspx.) 
+    So the below code should not break build in any case. -->
+    <ItemGroup>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Name)" />
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Name)"/>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Name) != ''"/>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Name) != ''"/>
+      <CurrentUICultureHierarchy Include="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Parent.Name)"  Condition="$([System.Globalization.CultureInfo]::CurrentUICulture.Parent.Parent.Parent.Parent.Name) != ''"/>
+    </ItemGroup>
+  </Target> 
+
+  <!-- Copy resources over to $(TargetDir) if this is a localized build. -->
+  <Target Name="CopyMSTestV2Resources" BeforeTargets="PrepareForBuild" Condition="$(EnableMSTestV2CopyResources) == 'true'" DependsOnTargets="GetMSTestV2CultureHierarchy">
+  
+    <PropertyGroup>
+      <CurrentUICultureHierarchy>%(CurrentUICultureHierarchy.Identity)</CurrentUICultureHierarchy>
+    </PropertyGroup>
+  
+    <ItemGroup>
+      <MSTestV2Files Include="$(MSBuildThisFileDirectory)..\_common\*.dll" />
+    </ItemGroup>
+	
+	<ItemGroup>
+      <Content Include="@(MSTestV2Files->'%(RootDir)%(Directory)$(CurrentUICultureHierarchy)\%(FileName).resources.dll')" 
+               Condition="Exists('%(RootDir)%(Directory)$(CurrentUICultureHierarchy)\%(FileName).resources.dll')">
+         <Link>$(CurrentUICultureHierarchy)\%(FileName).resources.dll</Link>
+         <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+         <BaseAssemblyFullPath>%(FullPath)</BaseAssemblyFullPath>
+         <Visible>False</Visible>
+      </Content>
+    </ItemGroup>
+  </Target>
+
+  <!-- This is required because an empty resource folder is left even though the files within are cleaned up. -->
+  <Target Name="CleanupMSTestV2ResourceFolders" AfterTargets="AfterClean" Condition="$(EnableMSTestV2CopyResources) == 'true'" DependsOnTargets="GetMSTestV2CultureHierarchy">
+    <ItemGroup>
+       <ResourceDirectories Include="$(TargetDir)%(CurrentUICultureHierarchy.Identity)" />
+    </ItemGroup>
+    <!-- RemoveDir does not throw if the folder does not exist. Continue on error - In any case do not fail build if this task fails(Warn and move on).-->
+    <RemoveDir Directories="@(ResourceDirectories)" ContinueOnError="true"/>
+  </Target>
+</Project>