They don't want you to call it a 'theme park'. But if you're one of the foodies around the world who love the wildly popular, celebrity-chef Mario Batali-backed Eataly, the field-to-fork destination that opens this fall in Italy is the culinary 'theme park' of your dreams. Batali has described the Eataly phenomenon as a premium Italian grocery store 'with tasting rooms'. You shop, you eat, you love; authentic, from-the-source Italian food and food products.  When it launched in New York...