Bluetooth remote feature

[wscullen]

Add the ability to connect to a scoreboard instance as a "remote", where a team can be assigned to a bluetooth client, and the team's score can be increased or decreased by that remote.

AC

1. A separate route (or app) that functions as a remote client that can connect to the scoreboard app
2. The UI should be simplified and allow +/- of the score, display of the score of that team, and the team color and name.
3. All data for the assigned client should be sent over bluetooth.
4. Must function completely offline.