data: parse partial template specializations

* fixed: implicit template specializations will be found even if the original template definition is located in a different file (that gets included).
* implemented correct extraction of template parameters, template arguments and template specialization edges.
* added token locations for template parameters of partial template specializations.
* graph view displays full names of template parameters and template arguments.
* added test code for features

src/lib/data/graph/Edge.h

@@ -27,9 +27,10 @@ public:
 		EDGE_INHERITANCE				= 0x80,
 		EDGE_TYPEDEF_OF					= 0x100,
 		EDGE_TEMPLATE_PARAMETER_OF		= 0x200,
-		EDGE_TEMPLATE_SPECIALIZATION_OF	= 0x400,
+		EDGE_TEMPLATE_ARGUMENT_OF		= 0x400,
+		EDGE_TEMPLATE_SPECIALIZATION_OF	= 0x800,
 
-		EDGE_AGGREGATION				= 0x800
+		EDGE_AGGREGATION				= 0x1000
 	};
 
 	Edge(EdgeType type, Node* from, Node* to);