add an 'each' method to the GameBoardPoints class
add 'get all groups' method
test 'find airpoints' using results of 'find groups'
ready to complete 'find legal moves' method
add assert_array, assert_hash & assert_rwb_hash methods to unit tests
added 'get group stones' and 'find same color neighbor groups' methods
added 'get group stones' and 'find same color neighbor groups' methods
'find all groups' method works properly
improved 'find all groups' test
added 'find empty points for groups' method
successfully completed 'find legal moves' method