PHILADELPHIA — After the hugs and the high-fives, the handshakes and the pats on the back, the Phillies pulled on gray T-shirts with ‘NLCS’ printed across the chest and gathered in front of the mound for a team photo. It was shortly before 6 p.m. Saturday, and the party was just getting started. That was when Bryce Harper mentioned to Zack Wheeler and a few other teammates how happy he was to finally still be playing beyond his birthday. “Really all year he’s said it. He’s been talking about wanting to play on his birthday,” Rhys Hoskins said over the roar of another raucous clubhouse celebrat…