It’s sequin season again! And with New Year’s Eve just around the corner, that means shopping for the perfect party pieces, from a razzle-dazzle dress to a feathered frock to a lace bodysuit. Revel in the glamour at these five new NYC stores full of festive attire. LoveShackFancy 462 Broome St. Fashion girlies heart LoveShack. The cult label favored by Kate Hudson, Sofía Vergara and Paris Hilton opened the prettiest pink and posy-patterned flagship in Soho this fall. Slip into the holiday