SPRINGFIELD — Gov. Bruce Rauner signed two pieces of gun legislation into law Monday, but also said he will veto a measure that will regulate gun dealers.At a bill signing ceremony in Chicago, Rauner took action on House Bill 2354, the “red flag” bill that allows guns to be confiscated from people who are seen as a safety threat to themselves or others. He also signed Senate Bill 3256, which extends a 72-hour waiting period to all guns, not just handguns.While signing those measures, Rauner said he would …