It was tough to get a word out of cornerback C.J. Henderson at his first press conference after he was traded from the Jaguars to the Panthers in September 2021. The then-second-year cornerback was still getting used to a new environment in Charlotte — one that was more normal than the one he left in Jacksonville. And he’s naturally a quiet person. But this offseason, Henderson has come out of his shell, his Panthers teammates say. And they hope that, along with the ease he’s playing with during workouts, will help him unleash his potential as he enters Year 3 of his NFL career. “He’s out ther…