Integrate line calling into the app

[punchagan]

It is currently hard to keep track of players who haven't played for a few points, when calling lines. It is also unnecessary work to keep track of 4-3/3-4 ratios when calling lines. We could have a simple app to keep track of the lines that have been called. It would also help to have aggregate data across games.

• We could use the RSVP list to populate the initial squad
• At the beginning of the game we specify whether we are calling a 4-3 line or a 3-4 line. (M-W ratio)
• The UI guides the user to pick the right number of M/W players, and then the user can "lock" once the line has been called.
• In the following points, the ratio is automatically calculated and the player list is sorted based on the number of points players have played, and whether or not they have played the previous point. This would allow calling players who haven't played much to be called onto the line, if desired.