* Create crt-guest-dr-venom-stock.slangp
A stock version of crt-guest-dr-venom shader for systems like N64, GameCube, Playstation, Saturn, Dreamcast etc.
* Rename crt/crt-guest-dr-venom-stock.slangp to presets/crt-guest-dr-venom-stock.slangp
* Update crt-guest-dr-venom-stock.slangp
"shaders/guest" changed to "../crt/shaders/guest"
* Update crt-guest-dr-venom-stock.slangp
Changed stock.glsl to stock.slang.
* Update crt-guest-dr-venom-stock.slangp
Changed stock.glsl to stock.slang.