Riichi Mahjong

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- Added a game end summary table which shows the score changes for each round
- Added ability to save replays of entire games
- Added a new rule where the game continues to the next wind round if all players are below the target score
- Fixed riichi to not be counted if someone immediately rons the riichi tile
- Fixed a bug where the AI players could call chankan from their own kans
- Fixed some additional smaller bugs