What changed in EDuke32, build by build

Check all TROR layers in collision code

fix editor sprite select in TROR sectors

bare bones editor check for models

add invalid polygon check in editor mode

enable xoffset for face sprite voxel replacements

do not change GL_ALPHA_TEST state in model rendering code

fix sprite rendering order in polymost

fix sprite sorting issue that caused broken voxel rendering in polymost

Properly display non power of 2 floor aligned sprites in 2d mode

Correctly display sloped sprites in side view mode

Add slope sprite check to hitscan