Fix multiple problems with removal of tile map sprites from their layers.
+ Fix the calculation of the Atlas index of remaining tile map layer sprites after removal of a tile map layer sprite.
+ Fix out of range index when scrolling after the removal of a tile map layer sprite.
+ Fix out of range index for removal of multiple tile map layer sprite when they are removed out of order.
+ Update TMX width/height test (TMXOrthoTest4) to test removal of tile map layer sprites out of order
+ Clean up of TMX width/height test (TMXOrthoTest4)