NEW YORK — In some ways, OG Anunoby was clueless in his Knicks debut on Monday — even if he didn’t look it. A lack of clarity was expected for Anunoby, the darling of the deal that sent RJ Barrett, Immanuel Quickley and a second-round pick to the Toronto Raptors on Saturday. Anunoby arrived in New York on Sunday. He didn’t even leave his room to celebrate New Year’s Eve. Instead, he spent the night completing physicals, talking to head coach Tom Thibodeau and briefly reviewing the Knicks’ playbook before getting a head start on his sleep before game day. Jalen Brunson knew Anunoby’s game plan …