Wiring Upgrade

Continues the wiring upgrade. Now cameras, airlocks, robots, and air alarms also use the new wire datum system.
Global wiring code is now removed but there are sneaky objects which didn't rely on them such as mulebots and autolathes.

Fixes a few issues from the previous upgrade.
Merge pull request #6942 from PsiOmegaDelta/Hacking

Wiring Upgrade