Template TrackMonitor on fit node type

Adapts TrackMonitor so it can use both fit node types and thus monitor tracks coming out from PrKalmanFilter.

Depends on !2776 (merged). Addresses Alignment#16

To do:

• Introduce method for the number of active measurements on track to PrKalmanFitResult
• Is the number of iterations not matching a bug? (fixed)
• Configuration does not use the new ID of PrKalman version of this monitor. Addressed in Moore!1466 (merged)

Below find a comparison between this MR and master for TrackMasterFitter and a comparison between TrackMasterFitter(reff nodes off, parametrized scatters on) and PrKalmanFilter using the changes in this MR. The plots include histograms from the main folder and from the Long folder as I tested the monitor on Long tracks. 2D histograms and histograms with zero entries are skipped.

master_vs_mr.pdf tmf_vs_prkf.pdf

@ausachov, @freiss, @rskuza