Adds 3 warhammer skins

Gives Chef a Claptrap(tm) skin.

Gives Engi a Construct based skin!.

Gives Myst a UES Robo skin.

Gives Driver a House skin, including dynamic bones!.

Gives Regigigas 3 lore friendly skins.

Gives Bandit a Doom Guy 64 styled skin, includes dynamic bones.

Gives enforcer a new skin based on the Grand Duchess cosmetic from tf2.