(Reuters) - Superdry Plc , best known for its winter jackets and hoodies, said it was yet to see sustained cold weather across its markets, leading analysts to worry about further risks to the British fashion group's full-year profits.Superdry issued a profit warning last month, joining a growing list of fashion retailers hit by the unusually warm summer and autumn in Britain, continental Europe and the east coast of the United States.The company's full-year profits are heavily influenced by its..