I’ve never been to Milan (or anywhere in Italy for that matter) but sitting at a small table in Cittanuova in East Hampton, Nena and I got a small taste of one of Italy’s most chic and modern cities — along with some terrific, affordable fare. First, let me just mention that Cittanuova is an extremely versatile restaurant. Versatility isn’t a trait that many restaurateurs shoot for, but it’s on full display here. Looking for a bar with energy? Cittanuova has that. Want to eat outside? Cittanuova has two outdoor dining areas. Want to stop somewhere for coffee? Cittanuova is…