Adds Construction Permits

Hey, CE! Your engineers say they want to build a room, but you're afraid they'll take the blueprints and rename everything PRIMARY FART STORAGE?
Well, now there's a solution!

Construction permits, act as blueprints but only allow declaration of a new area; does not allow editing of existing areas.
no they dont count for blueprint objectives

You get three to a box, which should be more than enough for most rounds. Anything beyond that and you'll need to grab the blueprints.