The Manning Passing Academy presents quarterbacks across the country with unique opportunities. For a few days over the summer in Louisiana, they all get to interact with one another. Not too often does the top crop of college players hang out in a similar setting. Friendships and relationships can be built down there. Missouri‘s Brady Cook and Texas‘ Arch Manning may be the latest example, with the two apparently being roommates. “I was able to room with Arch down at the Manning Passing Academy,” Cook said Tuesday at SEC Media Days. “So we had some great conversations, and I just love how he’…