Joint solver basic implementation (axis aligned)

Does not handle rotation at all. solveWorkspaceSnaps is called in the debug game creation (Application.cpp)
Added isA to instance class

src/include/DataModelV2/JointsService.h

@@ -10,4 +10,6 @@ public:
 	~JointsService(void);
 	void createSnap(PartInstance* Part1, PartInstance* Part2);
 	void destroyPartSnap(PartInstance* Part);
+	void JointsService::solvePartSnap(PartInstance* Part, PartInstance* Part2);
+	void JointsService::solveWorkspaceSnaps();
 };