add [Room/],[Player/]
complete basic [RoomManager]
add session to world
design room
set the table
complete set table and dealCards
fix player.addPlayer;add AiPlayerPool
complete two,three desk and deal cards.
fix player.sendDeskTwo;fix room.dealCards;
complete  Player::checkGrabLandlord;fix Room::UpdateTwo;
fix three people int the game.
complete outcards
complete roundOver,logout
fix logout exception