Initial commit
Add new method for verify ring moves with coordinates.
fix bug in exist_intersection method
fix bug: search rows
yinsh: modify yinsh class name to board class
add zertz game
fix some bugs in zertz board
zertz: fix bug in detection of isolated group
zertz: remove comments
add new game: invers
create only one definition of color
fix bug: add common namespace
add common namespace
add tzaar game
add dvonn game
Add constantes for dvonn board display
dvonn: add color change
dvonn: add verify move method and color access method
tzaar: add mathods in order to play in console
tzaar: add constants for definition of grid