Adds Deathsquad to Quick-Create Antagonist Menu

-Pressing this button will spawn up to 5 death commandos on centcom with a customizable objective
-Added a shuttle console to the ferry that, rather than moving the shuttle, will send a request to admins instead
-Deathsquaddies get an energy shield
-Deathsquad beret will no longer hide head, face, and hair
Update one_click_antag.dm
Made deathsquads traitors to aid in tracking, admin tools, and end-round reporting
Removing duplicate href code
Resolved Conflicts:
	_maps/map_files/tgstation.2.1.3.dmm
Redo Map Changes
Merge pull request #4460 from Ikarrus/deathsquad

Adds Deathsquad to Quick-Create Antagonist Menu