Moved the Texture and Quad Lua wrapper files out of the opengl graphics implementation folder.

--HG--
branch : minor

src/modules/graphics/Texture.h

@@ -100,6 +100,8 @@ public:
 
 	virtual const Vertex *getVertices() const;
 
+	virtual const void *getHandle() const = 0;
+
 	// The default filter.
 	static void setDefaultFilter(const Filter &f);
 	static const Filter &getDefaultFilter();