MILAN (Reuters) - Industrial vehicle maker CNH Industrial said on Monday it appointed Chairman Suzanne Heywood as acting chief executive officer to replace outgoing CEO Hubertus Muhlhauser."The board reached its unanimous decision and accepted the resignation of Hubertus Muhlhauser as chief executive officer, who has left the group with immediate effect," it said in a statement.CNH Industrial's board also confirmed its "strong" support to the group's plan - devised when Muhlhauser was CEO - to..