data: Saving TokenLocations of scopes separately

This change parses the TokenLocations of scopes of classes, structs, functions, methods, namespaces and enums and
saves them in Storage with type LOCATION_SCOPE. The TokenLocations of these nodes are just their name declarations now.
Scope locations are displayed in blue color in the code view.

src/app/qt/element/QtCodeSnippet.h

@@ -75,6 +75,7 @@ private:
 		int start;
 		int end;
 		Id tokenId;
+		bool isScope;
 	};
 
 	void createAnnotations(const TokenLocationFile& locationFile);