Reformatting changes only
Tweaks for PSX mode

Add GIF_MNBIGFONT and change border bg
Support for PSX sector types 200 and 201

Thanks to Kaiser for help w/reverse engineering the speed and verifying
is a type of GlowThinker.
Scale PSX map light levels at load time

Works better than scaling the colormap in psxwadgen as allows lower
levels to exist.