After seven appearances before the East Hampton Village Zoning Board of Appeals, Shahab Karmely had had enough. So, too, did Kenneth Kuchin, his neighbor and adversary in a bitter proceeding about a tennis court, who time and again since early this year went to a zoning board meeting for yet another continuation of what should have been an open-and-shut hearing. So-called continuations are the rule rather than the exception in East Hampton Village zoning matters. They should not be.