Until last weekend it wasn’t obvious, but winter is upon us. And while most of the farm stands are boarded up for the season, just about all of Long Island’s East End wineries, bed and breakfasts, and restaurants remain open. Believe it or not, this is one of the best times to visit Long Island wine country. The summer crowds are a memory, the rush of harvest season is over and the 2005 vintage is resting comfortably in barrels and bottles before release. Tasting room staff can spend more time with you, it’s easier to get a reservation at the…