fixed strange bug with misaligned teleport pillar

continued texturing Northeast cave

added teleport to final area

teleports in entry room now functional

added several ledges for switches and terminals

added elevations for new shelf

added decorative shelf

finished elevations for silo tower and underground tunnel

added elevations to ruined building area

filled wireframe for hidden tower ruins

textured southern cavern

textured southern cavern

fixed elevation error in cave, added solid window between cave and pit

textured nonsensical Southern cavern

textured complex shapes in pit area