Thinning layers refurbished

Yay the layers actually thin! ( and the gradient is actually somewhat good :O ) Only major gameplay changes are on floors 5 and 10. the rest of the GP is more or less faithful to the original, with certain jumps being tweaked to be slightly less awful. Most skips should still be possible (including the corner clip on floor 2) Credit to Namoon14 for building the original Tower of Thinning Layers