* Resprites Existing Catwalks
* grey catwalk sprites
* white catwalk sprites
* black catwalk sprites
* updates hazard catwalk sprite slightly
* fixes a minor pattern fuckup on standard catwalks
* adds the turfs and items
* removes unneeded vars from the extra catwalk varients
* fixes missing catwalk floor basesprite
* adds a few catwalks to all stations
* fixes duped variables (im silly)
* actually fixes the duped vars (im even sillier)
* fixes a decal overlap on delta
