Adds Stuff
Injuects AI dependency of game_rules
Adds spec helper
Tests methods that call next player and next player type
Plays Human versus AI if Human goes first
Refactors method that handles AIs turn
White Space
Refactors AI turn
Creates method that returns true if either player is AI
Refactors play method
Refactors method that decides if ai class is needed
Playes through AI versus AI game