New rho definitions and refining no pT jet container names
This MR adds a new rho definition that the Jet/Etmiss group would like to study for R = 0.4 UFO CSSK jets and changes the names of the no pT cut containers.
The changes here should have zero impact on PHYS, etc and only change the content of specific JETMX formats.
Tagging @mswiatlo @camacho @mleblanc @haweber @mspalla
Tagging also @calpigia as he was informed already that there is another MR coming in
Marking this as urgent so that it can make it into the next release hopefully!