Initial JointsService and Snap implementation

This is incomplete and some issues need to be fixed

src/include/DataModelV2/JointsService.h

@@ -0,0 +1,13 @@
+#pragma once
+#include "Instance.h"
+#include "PartInstance.h"
+
+class JointsService:
+	public Instance
+{
+public:
+	JointsService(void);
+	~JointsService(void);
+	void createSnap(PartInstance* Part1, PartInstance* Part2);
+	void destroyPartSnap(PartInstance* Part);
+};