Huge weapons update and bugfixes

Added a work in progress weapon ammunition script, ammunition is now
server controlled with separate clip and reserve ammunition variables.
Ammunition can now be used across different guns of the same calibre.
More information inside "scripts/SSS/Weapon/Data.pwn".

Removed close animation from safeboxes.

Added fuel stations in Bone County and increased fuel outlet limit.

Fixed some interaction detection bugs with the BBQ item.