MILAN (Reuters) - The chief executive of UniCredit has a plan to revive his company's ailing share price - make it less Italian. Italy's biggest bank is looking at whether it can distance itself from its home country's stagnating economy and fractious politics by putting some of its most prized assets under one roof in Germany, people familiar with the matter said.Jean Pierre Mustier will unveil on Dec. 3, as part of his new business plan, a scheme to set up a new sub-holding company in Germany..