By Elvira Pollina and Alex FraserMILAN, Jan 10 (Reuters) - The new Santagiulia ice hockey arena in Milan, which will stage the top matches at the Winter Olympics next month, drew a vote of confidence on Saturday after it finally opened its doors with a test event featuring Italy's top teams.Don Moffatt, who is in charge of the ice at the rink, said he and the organisers were "very happy and satisfied with the field of play" and dismissed any concerns after a brief delay to the action on...