SPRINGFIELD — The greatest change the law has seen in the last five decades, Illinois Supreme Court Chief Justice Rita B. Garman said Tuesday, has not been a matter of statutory increase or technological advancement. Instead, the law’s most significant change has been in the composition of the bench and bar. “Our profession has become more diverse and more inclusive, and I think that’s the greatest advancement in the last 50 years,” she told a crowd at the Abraham Lincoln Hotel on …