Add a way to have a mesh/model be clippable if you are a certain role

[KingOfTheFBI]

Something that would be cool to implement is something like a detective room door a certain role can clip through. It could be attached to func_brush and or prop_static potentially. It could maybe use the collision, but shouldn't be shootable through by that role.

Use case is the detective room door in inno hotel, I want the detective to be the only role that can phase through a wall I set up. Gmod had it so you were pushed through it on a role check jankily, but we can do better. Should just be a seamless phasing.

Maybe have it role check at beginning of round for the collision?