Business and civic leaders worried about the impacts a looming state budget crisis could have on their own bottom lines gathered Friday to hear Gov. Charlie Baker address the Outlook 2015 luncheon sponsored by the Affiliated Chambers of Commerce of Greater Springfield. Baker repeated his pledge not to cut state aid to cities and towns. Beyond that, though, he offered little detail in advance of his budget which will be filed Wednesday, March 4. Baker did say an estimated $1.5 billion shortfall released last week by the Massachusetts Taxpayers Foundation group is probably on or close to the mark.