A Lenox Hill co-op that’s set to hit the market for $1.2 million has more than just 14-foot ceilings and two wood-burning fireplaces. The 1,000-plus-square-foot one-bedroom at 16 E. 63rd St. was once the home of the late Edie Sedgwick, a model and actress who was famously one of Andy Warhol’s superstars. Sedgwick, who died...