Add comparison of TPs.
Add argument mc_cmp for MC-only comparison plots, and add parsing
infrastructure.
Add the option to save plots to different directories based on their
producer.
Color fine-tuning when saving plots.
Also plot digi spectrum by RCT ieta.
Tune low PU mixing config.
Comment out some print statements and reverse difference in
TrigPrimDigiCmpPlotter.
Set scheduler back to condor for MC, PU=66.
Enable reemulation for PU=45,66 data.