Update to version 2- Player sprites + New weapon

-Added the Prometheus Cannon, a SSG replacement

-Added player sprites, very basic but they'll do the job lol

-Added a reward for killing all monsters on any given map (ammo + health)

-Added a parry to the shield, deflecting any projectile within the first 4 tics of raising the shield will give back +2 armor points

-Added custom barrels

-Tweaked existing weapons slightly, added gravity to grenades, fixed shotgun sound not playing occasionally, beefed up rockets