Improved Super Shotgun addon

I always thought the Super shotgun looked half-assed, this fixes that, using the awesome PSX Super shotgun remake sprites by Raz. CREDITS: Raz - For the PSX Super shotgun remake sprites, Xaser - For lostepis.wad (Doom: The Lost Episode), which is where I found the sprites originally.

Open Note to Sprite Author: Hi Raz! if you want me to take this down, just let me know, and I will happily comply. :D

NOTE: My username is no longer V0idH0und, but this mod was created when I used the V0idH0und alias. As such, the readme still credits me as V0idH0und. Please credit me as HeyItsDuke (Formerly V0idH0und) if you use any content from my mods with permission.