Refactor & More.

Changed the entity system to utilize mix-ins.

Added instanced sprites.

Texture support.

include/Engine/Globals.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <Engine/Level/Scene.h>
+#include <Engine/types/scene/Scene.h>
 #include <Engine/GameWindow.h>
 
 namespace Globals {