Add night vision goggles to the armory

[Flaborized]

Night vision goggles have a bunch of interesting gameplay implications when given to security. If there's a sink or some other form of similar sabotage, security could trade their sec-HUDs and thus immunity to flashes for improved vision in the dark. This could also add in some counter-play where traitors steal all the night vision goggles in the armory before laying down their sink so they have an advantage in the darkness. It's always fun to add more cool tools and doodads to sec's arsenal, especially stuff that has practical uses.