NEW YORK — Center fielder Brandon Nimmo and the New York Mets finalized their $162 million, eight-year contract on Saturday. A quality leadoff hitter with a.385 career on-base percentage, Nimmo became a free agent last month for the first time. During the offseason, the Mets have agreed to an $86.7 million, two-year contract with former Houston ace Justin Verlander, retained …