NEW YORK(Reuters) - J.C. Penney Co Inc filed for bankruptcy protection on Friday, the latest among traditional brick-and-mortar retailers to crumble as prolonged store closures due to the COVID-19 pandemic deliver the final blow to troubled businesses. The U.S. department store chain, known for selling family apparel, cosmetics and jewelry at roughly 850 locations, said it reached an agreement with creditors for about $900 million (743.6 million pounds) of fresh financing to aid operations,..