-Added LocalVector (needed it)
-Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too)
-Fixes and changes all around the place
-Added library for 128 bits fixed point (required for Delaunay3D)
The size settings are more "just works", with default scale and depth scale
values that don't need much tweaking.
Additionally, a "skin" mode was added so skin looks better.
EDIT: Cleaned up SSR filter shader a bit.