PWGJE - jetfinderQA, trackEfficiency: add max occupancy cut, edit histogram axes + dpt/pt hist in jetmatchingqa (#7415)

* AIMERIC jets - jetmatchingqa add dpt/pt for jet res

* PWGJE jetfinderQA.cxx and trackEfficiency.cxx : edits to axes (eta configurable)

* PWGJE trackeff fix - add track gen qa

* PWGJE - add maxOccupancy cut to jetfinderQA and trackEfficiency workflows

* clang fixes

* jetfinderQA.cxx fix for recent PR

* jetfinderQA.cxx megalinter fix

* fix configurable initialisation, change process function name

Author: aimeric-landou