STAMFORD — SantaCon, the annual event celebrated in cities across the country, where young people dress up in holiday garb and drink at bars, is returning to Stamford on Saturday. Revelers will meet at noon on Bedford Street. Stops include Brother Jimmy’s, Bradford’s Grill and Tavern, Tigin Irish Pub, Brickhouse, McFadden’s Saloon, Bar BQ, Bobby Valentine’s and Tiernan’s Bar and Restaurant.