Balanced damage values of all the guns.

Added new smoke grenade settings for Peaceman

- Implemented improved gun stats by Kill3rCat
- Fixed projectile position on some guns
- Put the gun collisions further from the projectile path to prevent guns hitting themselves

- custom gun sway
- new recoil response
- bolt actions and pistols don't use magazines anymore
- redone reload mechanic
- more realistic gun behavior (hold-open bolts, self-ejecting mags, quick mag swaps, bolt racking only when it makes sense)
- health bar now shows remaining ammo
- more streamlined controls
- guns are renamed to use their popular short names, together with the respective mags
- better item descriptions, including characteristics and controls
- Semi-auto rifles
- M1 Garand
- SVT-40
- Gewehr 43
- SMGs
- M1A1 Thompson
- Shotguns
- Winchester 1897
- PTRD is super accurate but can only be effectively shot stationary from crouch
- Bolt-actions are very accurate and can shoot rifle grenades, but are slow
- Semi-autos are more difficult to handle, but shoot faster
- Carbines have very good firerate, but are less accurate and require 2 hits
- SMGs:
- PPSh has high volume of fire, but is very affected by recoil and inaccuracy- can only be effectively fired in short bursts
- MP-40 has slow firerate but is very controllable
- Thompson has high firerate and better control, but low capacity
- Pistols use no mags, and are now quite useful as cheap beginner weapons. While other guns will be universally better, they are not to be underestimated

Big thanks to Moodz, who made all this possible by adjusting his scripts as well as full credits for adding and doing a ton of work on the Garand, Winchester, PTRD and Thompson.

As usual, feedback is very welcome.