Friend of Bacon Elizabeth Colton Walls is a Nashville gal with New York style – and New York fever! She lived there for 20 years, and it’s not quite out of her system. She’s been twice this fall and especially enjoyed the play Disgraced, by Ayad Ashktar, winner of the 2013 Pulitzer Prize; the Henry Matisse Cutouts exhibit at MOMA; and a nostalgic trip to the Union Square …