Add SmO2 to Histogram

.. from Moxy
Remove errant qDebug()
TrainView: Record in GC CVS format
Add Min, Max, Average SMO2

.. and add to summary
CsvRideFile: Correct GC parser
More decimals for tHb tooltip

.. on AllPlot
CSVRideFile: Add new series
CsvRideFile: Parse time in generic CSV
CsvRideFile: Parse Powertap Imperial CSV (if exists?)
JouleDevice: Remove BETA label