By James Mackenzie and Barry Moody ROME (Reuters) - President Giorgio Napolitano asked center-left leader Pier Luigi Bersani on Friday to assess whether he can win enough support in Italy's divided parliament to form a government and end the political deadlock left by elections last month. After two days of consultations with political leaders, Napolitano said he had given Bersani a mandate to talk to other parties and see if he can get the guaranteed support needed for a vote of confidence in both houses of parliament, where no single group has a workable majority. ...