By Michel Rose PARIS (Reuters) – French President Emmanuel Macron may find himself without a ruling majority during his second term and deprived of the ability to push through his economic reform agenda with a free hand after a new left-wing alliance did well in the first round of voting. The second round will be held on Sunday. Here are three possible outcomes. ABSOLUTE MAJORITY Scared off by increasingly strident warnings against Jean-Luc Melenchon’s radical left platform, voters elect more than 289 Macron-supported candidates to parliament. He will have free rein to drive through his manife…