Added latest skins for the Ballista and the BFG

Added latest skin for the Ballista.
Fixed some incorrections about the skins for the Ballista.

Added the latest skin for the chaingun (both mods).
Fixed firing animations for the chaingun (both mods).

Added skin for the Shotgun from the last update.

Removed "extra" bones for the crucible (sorry, but the mask texture came out "bad")

Added the latest two skins from the last update (check the images).

Supershotgun has now darker textures (to match better with the ones in game).
Added a "forgotten" part of the Crucible (plus fixed the position).
Improved main skin and third skin of the shotgun (always to match better with the one in game), along with additional glowing skin for trible burst mod (I had forgotten to add it too).

nothing

Fixed tint of the 2nd and 3rd skin about Chaingun (turret mod).
Updated Crucible with two extra colors along with a bone for final part of the blade.
Replaced round textures of the Chaingun with a new one.

None Provided