A view for open planning poker games.

Hey guys, on this branch you should be able to log in to Janeway and double click on and game in the "Open" folder to see a GUI for estimating it.

Some of the data presented is still fixture. A few methods in PlanningPokerGame.java are marked with //TODO" because they merely return constant dummy data.

You can select multiple cards at once nicely, and it will add them up and show you. We should certainly change this to have our WPI playing card though. Still a work in progress.