1757 Golf Club, Ashburn, Va., will open the SeventeenFiftySeven Restaurant in its expansive clubhouse later this month. SeventeenFiftySeven will feature authentic, American-style fare with a focus on healthy, freshly-made dishes. The club has also named Marc Barber as Executive Chef. In addition to managing kitchen and overall food-and-beverage operations at SeventeenFiftySeven, Barber will create menus…