Hivemind Communication (:g) must be purchased before use

- A new Hivemind Communication power is required to be purchased before the changeling can use the changeling channel (:g)
- Changelings without the Communication power can still faintly sense if other changelings are speaking through hivemind, but not who or what they are saying.
- Hivemind DNA exchanges also require this power to be purchased first
- Changelings will be told their changeling name when they are made changelings.

I'm finding it a bit ridiculous that a team of changelings can easily kill off most of the crew. Especially during high-pop, when changelings outnumber even security. Gating this off is intended to make this a little harder to pull off, and make ling vs ling conflict a little bit more common.