The Illinois Supreme Court is in the midst of sweeping changes as justices exit and the newly elected take their seats.Although Justice Robert L. Carter’s stint with the Supreme Court was a brief two years, he said he is humbled and honored to have been a part of the highest court in the state.“It’s really bittersweet” he said as he approached his last day as an active judge, which was Sunday. “But consciously I knew the day would come sometime. There aren’t too many people who stay on …