Vega Strike Code

- Fixed inverted normals in several models
- Fixed zeroed normals in a couple models (had to re-import from
masters or set usenormals=0)
- Fixed smoothing groups in Hawking
- Switched normalmaps to DXT5nm (note: CINEMUT-NM is somewhat
compatible with DXT5nm, so existing normalmaps should work almost the
same). For further normal maps, use
nvcompress -bc3nm input.png output.texture
- Integrated normalmaps that were present in masters and not in-game
* usually, they were as bumpmaps, used gimp's normalmap plugin
- Renamed a few .png textures to .texture (standard extension is
.texture)