By Hunter Hodies One of the best cornerbacks in the league is reportedly set to hit the open market in a couple of weeks. Per NFL Network’s Ian Rapoport, Patriots cornerback JC Jackson is going to be a free agent when the new league year opens. He will generate a lot of interest around the league due to how great he was this season. “JC Jackson, one of the top corners available on the market, is expected to be a free agent,” Rapoport said. “Of course, the reason that is news is because the franchise tag is available and some were pondering if the Patriots were going to tag Jackson and keep him…