## About The Pull Request
This replaces needless GLOB.machines with more precise lists whenever
one existed, plus adding a new one for CTF machines.
## Why It's Good For The Game
GLOB.machines holds every single /obj/machinery in the game, so checking
the whole list for stuff is pretty big. This aims to cut that down by
using smaller lists whenever possible. I also gave CTF a new list
because it checked machines very often.
## Changelog
Nothing player facing.
ac8dc42060