Improve handling of particle level objects when in same tree with reco

Tadej Novakrequested to merge
tadej/athena:cp-pl into main

Improve handling of particle level objects when in same tree with reco ones:

  • add tests
  • propagate skipOnData, skipOnMC and onlyForDSIDs to sub-blocks with YAML config
  • add separate truth MET writing alg instance and explicitly default to sane truthMetTermName value of the output block (like elsewhere assuming "Truth" in the container name means truth MET)
  • make output truth MET container configurable and drop underscore (TruthMET now, like AnaMET)
  • set default skipOnData=True for all PL blocks

/cc @krumnack @ravinab @tstreble

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