Consistency for NPC & Vehicle listings

* Both files changed to match same coding style
* Restricted Jalopy Seat to be spawnable only when EP2 is mounted (
missing texture )
* Restricted Fast Zombie Torso to be spawnable only when EP1 or EP2 are
mounted. ( Missing model )
* Removed one of useless seats from PHX.
Merge pull request #570 from robotboy655/npc_veh

Consistency for NPC & Vehicle listings