Photo: Christian Monterrosa/Bloomberg/Getty Images The upcoming vote for mayor and other municipal offices is the main event on Election Day, but New Yorkers will also weigh in on a ballot question that, if approved, would start the process of revising the City Charter and the State Constitution to move city elections from the current odd-numbered-year schedule and make them coincide with the year we pick presidential candidates. If that happens, we’ll be joining cities like Baltimore and Los