Added rotation capability and added a new calss Vector3f that holds 3 float values for ex rotation

src/ei/game/gamestate/InGameState.java

@@ -30,6 +30,7 @@ public class InGameState extends GameState{
 	@Override
 	public void update() {
 		sprite1.getLocation().add(0.1f);
+		sprite1.getRotation().add(0, 0, 0.5f);
 		sound1.getLocation().add(new Vector2f(1,0));
 		rootNode.update();
 	}