Mike Dunleavy did more than break a tie. He apparently broke the New York Knicks’ will to compete. By the time Dunleavy’s scoring spree was done, the only toughness shown by the Knicks came from Isiah Thomas, in perhaps the strongest comments he’s ever made about the disappointing team he assembled. Dunleavy scored 22 of his career-high 36 points in the third quarter, helping the Indiana Pacers pull…