light_enviroment updated

-fixed a bunch of shading issues
-big optimisation pass, should run betterer now

-no more dead flag blues
-new skybox and lighting
-visual updates/changes across the map
-cubemap fixes
-material fixes
-deleted roughly 3000 erronous faces, added 3000 less erronous ones

updated based on feedback from a few people namely eliasCS2/unknownthelad and void. Thanks to both of you and everyone else!

fixed a number of missing textures + zfighting. Might boot now :)

Created Apollo.