[MAP] Brig Cleanup

-Fixed several broken atmos piping
-Fixed AI blind spots (Execution chamber excluded)
-Removed armory-equipment room airlock. Less holes in the armory, the better, what with the new brig control-sec office airlock
-Fixed the button change in brig control being reverted
-Removed sec office light switch from under the airlock for real this time
-Removed airlock from execution chamber access
-Added a bolt lock to the execution chamber restricted to Captain access. Now it works like the lethal injection locker. Requires captain to unlock it, but then security can have their way with it after
-Removed Labor shuttle - prison wing connection as it defeated the purpose of having it by the warden's office with blast door controls
-Expanded the evidence room and added a real airlock to it
-Moved several vents that were hidden under objects
-Fixed a bunch of other misc errors

@steelpoint
Changed execution chamber access to access_hos, removed bolt controls
Merge branch 'master' of https://github.com/tgstation/-tg-station into steelpointcleanup

Resolved Conflicts:
	_maps/map_files/tgstation.2.1.3.dmm
Merge pull request #3419 from Ikarrus/steelpointcleanup

[MAP] Brig Cleanup