FLORHAM PARK, N.J. -- Later today in northern New Jersey, 39 of the NBA's top rookies -- including Karl-Anthony Towns, D'Angelo Russell, Jahlil Okafor, Kristaps Porzingis and more -- will begin three days of activities that will have a most profound impact on Panini America's 2015-16 NBA trading card season. Indeed, 2015 NBA Rookie Photo Shoot weekend officially tips off…