Fixed up some missing textures/models around the map

Changes:
- Tweaked compile settings. Lighting should be better
- Updated moving carts in meat grinder to no longer rotate, eliminating the biggest factor of getting stuck while riding in cart. Still not perfect. Tracktrains don't properly damage players/things blocking them, so I had to do a hacky half solution to sort of make it work.
- Added AI nodes in a location I forgot to add them
- Small positioning fixes for some props