Early Access Update 21

I was going to save up a few more changes before pushing the next update, however Valve have released a new STEAMWORKS SDK v1.58a ... so here it is!

1. Change: Steamworks updated to v.1.58a.
   
2. Fix: Added missing Angel Cannon model.
   
3. Fix: Added missing textures for Angel Cannon.
   
4. Fix: Added missing particle texture.
   
5. New: Added Angel Cannon model and animation to Special Use Item "Danger Close".
   

A bigger and meatier update to come soon™.

˓˓ฅ₍˄ุ.͡ ̫.˄ุ₎ฅ˒˒
(apparently that's a cat)