PARIS — French voters head to the polls again Sunday for local runoff elections that will show which direction the wind is blowing ahead of next year’s race to replace President Emmanuel Macron. The contests are going to be tight. Many candidates who qualified for round two by scoring more than 10 percent of the vote withdrew or formed strategic alliances to give their ideological allies the best chance to win. It’s going to be spicy, but also complicated. If you want to know which cities are