[Feature] Portable Atmospheric Depot

[elan_oots]

The one thing I'm not a fan of is your proc declarations with the whole path in it, which makes me realize I need to change some of mine to be consistent. All the procs you created are in the atmosgen object so you can just use proc/procname inside the current object and just the procname for overriding a proc like Process from obj/machinery. But that's just preference, and I feel like that's mostly what I've seen around the codebase.

Ew relative pathing sucks

On a more serious note, declaring the full path of a proc makes searching for code so, so, so much easier. So much so, in fact, that TG actually mandates you format proc paths that way in their code style guide.