Adding histos just for dimuon analyses

[rolavick]

No description provided.

[alibuild]

Error while checking build/O2Physics/o2 for 38ca16e at 2024-03-01 23:21:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/4960-slc7_x86-64/0/PWGUD/Tasks/upcTauCentralBarrelRL.cxx:413:1: error: version control conflict marker in file
/sw/SOURCES/O2Physics/4960-slc7_x86-64/0/PWGUD/Tasks/upcTauCentralBarrelRL.cxx:414:3: error: expected primary-expression before '==' token
/sw/SOURCES/O2Physics/4960-slc7_x86-64/0/PWGUD/Tasks/upcTauCentralBarrelRL.cxx:414:5: error: expected primary-expression before '==' token
/sw/SOURCES/O2Physics/4960-slc7_x86-64/0/PWGUD/Tasks/upcTauCentralBarrelRL.cxx:414:7: error: expected primary-expression before '=' token
/sw/SOURCES/O2Physics/4960-slc7_x86-64/0/PWGUD/Tasks/upcTauCentralBarrelRL.cxx:449:1: error: version control conflict marker in file
/sw/SOURCES/O2Physics/4960-slc7_x86-64/0/PWGUD/Tasks/upcTauCentralBarrelRL.cxx:450:132: error: expected primary-expression before ')' token
ninja: build stopped: subcommand failed.

Full log here.