As mentioned right here a couple weeks ago, the 2006 Long Island Wine Country Winter Festival is taking place throughout the month of February. And it should come as no surprise that Martha Clara Vineyards, they of the jam-packed event schedule, is taking part in a big way. Cooking classes, chocolate-making demonstrations and oyster shucking dot the calendar. But one event stands out. On Friday, February 17, Martha Clara Vineyards is hosting a dinner and auction to benefit Healing the Children – Northeast for a medical mission to Guayaquil, Ecuador, that will provide healthcare and surgery to the poor children…