added next_game , get a pm from  when next game starts
added next_game , get a pm from  when next game starts

jh0ker/mau_mau_bot,jh0ker/mau_mau_bot,SYHGroup/mau_mau_bot,SYHGroup/mau_mau_bot,pythonalliance/uno2bot,pythonalliance/uno2bot