* Prevents overtime in the economy SS
Ok so like, we were doing a LOT of work all at once without yielding,
which is fine cause like, it's only fired once every 5 minutes, but it's
still kinda dumb
So I've cleaned up the subsystem to make it support an ssair style of
yielding, alongside an optimization to vending machine z level checks
that I suspect was taking a lot of cpu.
Remind me to refactor z level lookup someday bestie
Anyway yeah now we won't see strangely high overtime for ssecon anymore
* vending gang (renames a variable to not just be v
* It is done