The Cleveland Cavaliers dominated the Toronto Raptors in the second half of Game 7.  The two teams were tied at 49 at the half, but the Cavs came out of the locker room hot, with center Jarrett Allen leading the way. In a series where it felt like superstar backcourt Donovan Mitchell and James Harden just couldn’t figure out the defensive-minded Raptors, Allen’s contributions powered the Cavaliers into an Eastern Conference semifinals matchup against the No. 1 seeded Detroit Pistons.  Before we worry about Round 2 on Tuesday night in Detroit, let’s hand out a few grades for Game 7. Jarrett Allen: A+ There’s no question that Allen’s dominance gave the Cavaliers the advantage in Game 7. He was magnificent, scoring 22 points, 19 rebounds and three blocks. 14 of those points came in the third quarter, helping the Cavaliers finally separate themselves from the Raptors. He completely changed his narrative, albeit a first-round victory, about shrinking in big moments.…