Messages from game module to the server

Table of Contents
REQ_GAME_JOIN -- Request for a player to join a table
REQ_GAME_LEAVE -- Request for a player to leave a table
REQ_GAME_SPECTATOR_JOIN -- Request for a spectator to join a table
REQ_GAME_SPECTATOR_LEAVE -- Request for a spectator to leave a table
REQ_GAME_SEAT -- Request to modify a player seat
RSP_GAME_STATE -- Response to game state change request

Messages from game module to the server