By DEE-ANN DURBIN The discount chain Big Lots, which filed for bankruptcy protection in September, has reached a deal that will keep hundreds of its stores and distribution centers open. Big Lots said Friday it will be sold to Gordon Brothers Retail Partners, a firm that specializes in distressed companies. Gordon Brothers will then transfer Big Lots’ stores, distribution centers and other assets to other retailers. Variety Wholesalers Inc., which owns more than 400 discount stores in the U.S.