logic: add type information of variable decl to name hierarchy

* implemented this feature for both, CXX and Java
* adjusted tests to reflect these changes
* added NameElement and NameHierarchy to Java code
* created more specialized JavaDeclName classes: JavaFunctionDeclName and JavaVariableDeclName
* implemented recording static modifier for Java methods and variables

fortune cookie message = You will enjoy true success in whatever you do.

java_indexer/src/main/java/com/sourcetrail/CallableConstructorDecl.java

@@ -1,7 +1,5 @@
 package com.sourcetrail;
 
-import java.util.List;
-
 import com.github.javaparser.ast.type.TypeParameter;
 import com.github.javaparser.ast.NodeList;
 import com.github.javaparser.ast.body.BodyDeclaration;
@@ -43,4 +41,9 @@ public class CallableConstructorDecl implements CallableDecl
 	{
 		return new UnknownType();
 	}
+	
+	public boolean isStatic()
+	{
+		return m_decl.isStatic();
+	}
 }