Adds Connect5Utils.java to parse GDL for coordinates of "Connect Five".
Skipps printing stack trace of getGoal exception for "Chinese Chekcers, One Player" and "Blocker".
Removes PlanningManager interface from Gamers.
Removes PlanningManager.java completely.
Adds MaxKnightsUtils.java and MaxKnightsPlanner.java, and uses them at CompositeGamer.