add new file:   mahjong/tiles.hpp
add non member functions
	modified:   mahjong/tiles.hpp
add namespace data and Box container adaptor
	modified:   mahjong/tiles.hpp
remove the value in honor's title
	modified:   mahjong/tiles.hpp
working on Box, [] and other members added
	modified:   mahjong/tiles.hpp
ready to for merging into master
	modified:   mahjong/tiles.hpp	commented and tested.