Revert "Corrected level saving system."

This reverts commit e4ca2d78727a509d9f9a5ac6f348832a34c2be81.
Revert "Uninstantiated viewport in constructor of GameCanvas."

This reverts commit fb783c0926f3790da7bd0145cffcc62389e1e8fa.
Revert "Fixed imports in MotionSystem."

This reverts commit 30351bd2cbb52e7670f8f48402a6e9397d99ce0f.
Revert "Added lastTime to Movable."

This reverts commit e9c235a776b24a9b6b948f967a8f26d211ab9288.
Revert "Corrected construction of Viewport in Game."

This reverts commit 3b5a782b3111c82254a0f335cfc6c3d039960860.