Code is finally compiling with CalibOffline() included.
   - Moved definition and initialisation of TCanvas's for calibration plots to main().  This was to allow all parts of Calib.C CalibTools.C and CalibOffline.C to plot to the same place.
   - When --CalOf option is selected the code should search for a filename in the input staring "CalibOut" and then try to load it.  TTigFragment tree loop will not run if this option is passed.
   - Filename passed from main() to CalibOffline() and TFile opened from there.