The founder of a franchise business that sells shaved ice out of trucks is the scheduled focal point of a quarterly meeting of the Northern Illinois Franchise Association on Tuesday. Tony Lamb, founder of Kona Ice — Entrepreneur magazine’s “No. 1 Franchise” in 2013 — will likely be presenting to a distracted audience of franchisees, franchisors, lawyers and others at the Big Bowl restaurant in River North. That’s because of a move this week by the National Labor Relations Board …