The Tonight Show turned into a full-on Knicks lovefest as superfan Jimmy Fallon stacked the guest lineup with players from the NBA championship team and the audience with die-hard Knicks fans who did not get to attend the Finals in person. Monday’s episode , which airs tonight at 11:35 p.m. ET/PT on NBC, bumped original guest Lin Manuel Miranda, who graciously conceded his couch spot. His appearance was taped to air next week. Knicks night started with some boos — the warmup comic joking that “