[PWGCF/FemtoUniverse] Add EfficiencyCorrection class & fix pT binning in FemtoUniverseParticleHisto

[davkk]

This PR:

• fixes segfault when CCDB timestamps configurable array is not empty
• changes the default values for some of the configurables for convenience
• updates the binning of Tracks_*_MC/hPt histogram to take values from confTempFitVarpTBins configurable (in FemtoUniverseParticleHisto.h)
• adds a new EfficiencyCorrection class, that builds on top of the EfficiencyCalculator

The new EfficiencyCorrection class

• it assumes the necessary weights are already calculated and directly stored in CCDB (instead of simple efficiency histograms)
• simplifies the flow on the side of the framework (less configurables, no metadata needed for CCDB objects) in preparation for support of histograms of more dimensions
• EfficiencyCalculator is kept for backward compatibility, however its flow is limited, as it does not include other aspects like secondary contamination
• requires custom script for calculating the weights and uploading them to the CCDB (upload can easily be done with o2-ccdb-upload script)

[alibuild]

Error while checking build/O2Physics/o2 for f30a43d at 2025-03-16 23:15:

## sw/BUILD/O2Physics-latest/log
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCalculator.h:91:40: error: there are no arguments to 'loadHistFromCCDB' that depend on a template parameter, so a declaration of 'loadHistFromCCDB' must be available [-fpermissive]
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCalculator.h:82:30: error: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Werror=sign-compare]
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCalculator.h:91:56: error: 'loadHistFromCCDB' was not declared in this scope
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCalculator.h:91:40: error: there are no arguments to 'loadHistFromCCDB' that depend on a template parameter, so a declaration of 'loadHistFromCCDB' must be available [-fpermissive]
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCalculator.h:82:30: error: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Werror=sign-compare]
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCalculator.h:91:56: error: 'loadHistFromCCDB' was not declared in this scope
/sw/SOURCES/O2Physics/10528-slc9_x86-64/0/PWGCF/FemtoUniverse/Core/FemtoUniverseEfficiencyCorrection.h:79:30: error: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Werror=sign-compare]
ninja: build stopped: subcommand failed.

Full log here.