[SBW] BackPack GUN

A simple mod that displays all the weapons from the player's inventory on their back. It includes limits: up to 2 large weapons on the back and 1 weapon in a holster (i.e., a pistol-class weapon), for a maximum of 3 weapons. When running, the weapons on one's back jiggle a bit.

COMMANDS (op only!): 

/sbwbackguns info — Displays all current render offsets and limits.
/sbwbackguns angle1 <degrees> — Adjust primary slot 1 slant angle.
/sbwbackguns angle2 <degrees> — Adjust primary slot 2 slant angle.
/sbwbackguns height <value> — Adjust back gun height placement.
/sbwbackguns scale <value> — Adjust global back gun scale.
/sbwbackguns pistol_height <value> — Adjust hip holster drop position.