From Aymeric Laporte to Raphaël Varane, from Presnel Kimpembe to Dayot Upamecano, there isn’t a single nation in the world that can hold a candle to France’s center back depth, and the next name in France’s laundry list of elite center backs is 21-year-old Jules Koundé.   After rising up Bordeaux’s academy and breaking into…