Photon ID and Iso configuration in CP algs

Following up on #115 (comment 7203489) with @khoo, allowing for user configuration of photon ID and Iso working points through yaml config file.

Files edited:

• EasyjetHub/python/algs/calibration/photons.py:

  • Defined PhotonWPLabel based on photon ID and Iso WPs chosen, for naming configuration
  • Configure qualityWP and isolationWP based on input flags

• bbyyAnalysis/share/yybb-base-config.yaml:

  • Set default Photon ID and Iso WPs to ones used in legacy analysis (Tight, FixedCutLoose). Can always be edited by users for studies, but propose leaving defaults to last/latest points used in analysis.

An issue I ran into that I don't understand: When running with the NonIso Iso working point, the CP algs were not able to properly initialize:

NonIso_Error.log

NonIso_Error_Longer.log

It appeared this was due to the isolation efficiency SF computation done here in the CP algs, so I turned off SF computation if the ISO WP is NonIso. However, I think this would lead to not computing ID/Reco efficiency SFs...is this something that should be updated in athena/PhysicsAnalysis/Algorithms/EgammaAnalysisAlgorithms/python/PhotonAnalysisConfig.py? Or perhaps I'm missing something for computing SFs when not running an isolation?

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yybb analyzers for feedback from yybb point of view: @smeriano @losanti @gdigrego