data: Fixes and features for loading Coati into Coati

This change facilitates loading Coati into Coati:
* removed error logs for TokenComponent setting
* fixed edge checks regarding template stuff
* separated CommonSettings to be inherited by Project- and ApplicationSettings for common settings
* pluralized SourcePaths setting in xml to allow for loading multiple directories and single files
* added CompilerFlags section to settings
* passing Compiler arguments to Parser via struct Parser::Arguments
* setting -isystem for all header search paths to avoid distinction between "" and <> headers
* parsing all headers from the SourcePaths, even the ones that are not included
* fixed parsing time measurement and display
* added utility.h file for general utility functionality

src/lib/settings/Settings.cpp

@@ -0,0 +1,47 @@
+#include "settings/Settings.h"
+
+#include "utility/file/FileSystem.h"
+#include "utility/logging/logging.h"
+#include "utility/text/TextAccess.h"
+#include "utility/utilityString.h"
+
+Settings::~Settings()
+{
+}
+
+bool Settings::load(const std::string& filePath)
+{
+	if (FileSystem::exists(filePath))
+	{
+		m_config = ConfigManager::createAndLoad(TextAccess::createFromFile(filePath));
+		return true;
+	}
+	else
+	{
+		m_config = ConfigManager::createEmpty();
+		LOG_WARNING("File for Settings not found.");
+		return false;
+	}
+}
+
+void Settings::save(const std::string& filePath)
+{
+	if (m_config)
+	{
+		m_config->save(filePath);
+	}
+	else
+	{
+		LOG_WARNING("Settings were not saved.");
+	}
+}
+
+void Settings::clear()
+{
+	m_config = ConfigManager::createEmpty();
+}
+
+Settings::Settings()
+{
+	clear();
+}