For decades, George E. Norcross III was the boss. Maybe the boss of all bosses. A wealthy insurance executive who never held elective office, Norcross wielded vast influence across New Jersey through a potent political machine that rewarded those who played ball with him, ended careers for those who challenged him, and had a reach that extended well beyond his homefield of Camden County to fiefdoms far to the north. But on Tuesday morning, he was in a Trenton courtroom being arraigned on a 13-count state grand jury indictment charging the silver-haired Democratic power broker — along with his …