Update Spiker to use new refactored projectile entity.

Update weapon base.

Add projectile impact decals (Rocket Launcher, Brute Shot leave scorch marks on impact).

Major update to weapon base for projectile type weapons.

Brute Shot, Needler and Rocket Launcher updated to use the new system for projectile based weapons.

Update Rocket Launcher to use new built in support for rocket-type weapons.

Fix Magnum not ejecting shells.

Use new feature of weapon base in Shotgun for delayed ejection of shotgun shell + shotgun racking sound.

Buff Battle Rifle accuracy.

Initial addon creation.