By Angelo Amante and Giuseppe Fonte ROME (Reuters) – Italian Prime Minister Mario Draghi said on Tuesday he would leave office if the 5-Star Movement pulls out of his coalition, and called on parties supporting him to stop launching “ultimatums” to his government. 5-Star leader and former Prime Minister Giuseppe Conte last week tabled a list of policy demands to continue backing the government and threatened to quit if Draghi failed to enact a series of measures. A crucial vote of confidence on a stimulus package to help families and firms cope with the energy crisis will take place in the Sen…