Various gun stuff
Created by: smet19
Adds chamber to mag-type guns. Ammo now loading into the chamber. Adds some new sprites for ammo mags. Renamed load_into_chamber() to process_chambered() UZI, Saber and Stechkin now have states without magazine and without bullet in chamber. Added sprite of live ammo casing. Shotguns now spents shells instead of replacing them with empty shell Fixes magazine's loading. Now you can't load stechkin with SMG mag Now you can load bullet in chamber and unload it
This is my first (actually second) pull request , so please, don't throw shit on me