Add (deactivated) code to investigate the hot spot in the (nplanes, nwires) space.
DC windows that match to more than on PC window were not assigned in the intended way.  Fix that.
Better diagnostic in case of exceptions.
Centralize asssumptions about the layout of MC truth info.
Implement MC truth handling for G3.
Add a track-based analysis (helix fit)
Add truth plots for the track-based analysis.