Among the illustrious alumni being inducted into the St. Benedict’s Preparatory School Hall of Fame on Wednesday night, the most celebrated of them was not in attendance. Gregg Berhalter, 49, a member of the Newark prep school’s Class of ‘91, was on the other side of the globe, in Qatar, as coach of the U.S. Men’s National Soccer Team competing in the World Cup. “When I made that decision to transfer my sophomore year, I had no idea what would unfold in those next three years,” Berhalter, who grew up in Tenafly, said in a videotaped acceptance speech shown to over 400 alumni, students and facu…