Add game set match scoring variables
Add game scoring logic
Add test for games scoring that fails even though I think it should not
Add set and match logic and associated tests that pass!
Add really long match emulation. Found a failing test for opponent winning a set
Add opponent wins game and opponent wins match to Player#sets_matches
All tests working except for Player#sets_matches return statement on player winning
Fix Player#sets_matches match won return. Not pretty.