The final two outdoor, organic, paradisiacal dinners of 2009 take place this month. The groovy gastronomic get-togethers down at Gabriele Marewski's Paradise Farms always bring great food and wine (from Stacole Fine Wines). Fellow diners tend to be in amiable, festive spirits, and the setting is simply unbeatable.This Sunday evening, April 12th, is the Vegan Gourmet dinner cooked up by chefs Mark Zeitouni (The Standard's Lido Restaurant); Giancarla Bodoni (Escopazzo); and Rafael Diaz de Leon (wh