A collection of medical groups and health advocates are urging state lawmakers to pass a bipartisan but long-stalled bill that would ban smoking inside Atlantic City casinos, saying workers are being “unnecessarily exposed” to secondhand smoke. Meanwhile, state Assembly Speaker Craig Coughlin told NJ Advance Media this week state lawmakers are still “actively talking about” the measure. Plus, a new report from a gaming research firm suggests ending smoking in casinos might not cause a exodus of customers — something opponents of a ban have long warned would happen. Casinos in Atlantic City are…