Move sound -> sounds and added other weapon sounds
Added MP5, M1911 and R870 models from Hidden for testing
Added WeaponResource and updated WeaponItem to use it
Fixed typo AmmoResouce -> AmmoResource
Strip WeaponConfig in favor of using WeaponResource and add MP5A4 and Crossbow support
Add MP5A4 and Crossbow game resources
Give crossbow + MP5A4 using new method
Test controllable recoil