Add a individual to the adapter
        
            Args:
                ind_obj (puzzle.models.Individual)

def _add_individual(self, ind_obj):
        """Add a individual to the adapter
        
            Args:
                ind_obj (puzzle.models.Individual)
        """
        logger.debug("Adding individual {0} to plugin".format(ind_obj.ind_id))
        self.individual_objs.append(ind_obj)