Add a statistical profiler. Also applied a bugfix b3Profiler.

- This is a compact hierarchical profiler which also stores node statistics
- Might need to use a hash-table to lookup statistic for node because each frame trees are build

examples/testbed/framework/view.h

@@ -42,6 +42,7 @@ public:
 	void BeginInterface();
 	void Interface();
 	void InterfaceProfileTree();
+	void InterfaceProfileTreeStats();
 	void EndInterface();
 private:
 	friend class ViewModel;