working on player, swithed to in_hand class
	new file:   mahjong/in_hand.hpp
	new file:   mahjong/player.cpp
	new file:   mahjong/player.h
add functions into in_hand.
	modified:   mahjong/in_hand.hpp
just commit all, and move to a branch top-down
	modified:   mahjong/in_hand.hpp
	modified:   mahjong/main.cpp
	modified:   mahjong/player.h
new start on this branch
	deleted:    mahjong/box.h
	deleted:    mahjong/game_master.h
	deleted:    mahjong/in_hand.hpp
	deleted:    mahjong/player.h
clear
	modified:   mahjong/mahjong.pro
	modified:   mahjong/main.cpp
	deleted:    mahjong/player.cpp
	modified:   mahjong/win.hpp
add generate_random_sequence, tested
	modified:   mahjong/random_sequence.hpp
add build_box, tested
	renamed:    mahjong/tile.h -> mahjong/tile.hpp
test box with sequence
	modified:   mahjong/main.cpp
add player and npc, tested
commented	:   mahjong/player.hpp
added hunman, tested .
	modified:   mahjong/player.hpp