Incorrectly loading a model, Adding a VertexArray abstraction

* Using import library assimp to incorrectly load a cube.obj
* Using a temporary Renderable class as a placeholder for all data needed
to render the mesh.
* Vertex Array abstraction added

MyGraphicsEngine/include/Editor/EditorWindow.h

@@ -0,0 +1,12 @@
+#pragma once
+#include <string>
+
+class EditorWindow {
+protected:
+	std::string WindowTitle;
+
+public:
+
+	virtual void Show() = 0;
+
+};