This PR ports pockets (from Animus Green) and adds them to some clothing.
Shoes that support storing items now use pockets system.
Some hats have 1 small pocket.
Detective's hat spawns with a flask in it.
Clown's mask has a single tiny top-secret pocket. Honk!
This PR also includes two or three path fixes. It also fixes internal storages (pockets, storage implant) having less "max depth" than external ones.