PHILADELPHIA – Less than 24 hours after Makai Lemon was drafted in the first round by the Eagles on April 23, he was courtside for Game 3 of the Sixers-Celtics playoff series, seated next to DeVonta Smith, on Friday evening. Fitting, that the Eagles’ present and future were side-by-side getting to know each other. “We were chopping it up a little bit,” said Lemon on Thursday, the eve of the opening of Eagles’ rookie camp this weekend. “I wasn’t trying to pick his brain too much. He’s chilling. But I definitely got to talk to him, see how things are going, see how the team is. “He said I’m going to love it. You came to a great organization, a great team, a brotherhood, so I’m super excited to get around the guys and it was definitely great meeting him and chopping it up with him.” After A.J. Brown, AKA Swole Batman, gets shipped off, probably to New England, a few days into June, Skinny Batman, AKA Smith, will need a new running mate, and it will be Lemon.…