UFO:Alien Invasion Code

* Removed unnecessary glcmds from the md2 models

* New stiletto model working in-game

* removed glcmds from md2 files (to reduce the filesize)

* reexported

* merged glass model and texture with basic model and texture of the interceptor

* use the trunk base content

* delete the base to allow to copy the trunk one

* Rotated stiletto to match all the other aircrafts
* Todo: Dropships is the only one left (180° rotated) but it is already used in too many maps for a change to be worth it.

* and again some aircraft directory renaming

* renamed model and textures to fit new nameing schema