Add Exclusive Server Access

[usmanatron]

aPC.Chromesthesia doesn't work so well these days. I suspect part of the problem is the new server architecture and, generally, using the separate server instead of directly.

Plan is to add an exclusive mode to the Server which bypasses a lot of the handling logic and allows you to be more direct with what happens. The disadvantage will be much less fidelity with the messages, but I think thats fine (e.g. it'll probably only take in a frame)