Land Use—Memorandum of Understanding (MOU) Violated Term Limits Rule and Prohibition Against Contract Zoning—MOU Purported To Bind Successor Town Boards—Each Board “Must Maintain Its Autonomy and Must Be Imbued With Full Discretion When Exercising Its Legislative Functions…Concerning a Zoning Change, Including Its Right Not To Continue the Review Process Until a Final Determination…Is Reached”—Fact That MOU Committed a Town Board To Follow a Process and Did Not Require the Board To Reach Any Particular “Final Determination,” Did Not Render the MOU Legal