Activate different physics models for crmc 2X, add switcher between hepmc2 and...
Activate different physics models for crmc 2X, add switcher between hepmc2 and hepmc3, disable ROOT support for version >= 2.0.0, add fastjet support
Activate different physics models for crmc 2X, add switcher between hepmc2 and hepmc3, disable ROOT support for version >= 2.0.0, add fastjet support