Feature/versions

[mafrahm]

Main changes:

• datasets
  • naming convention changes (hh_ggf_kl1_kt1_hbb_hvv -> hh_ggf_hbb_hvv_kl1_kt1)
  • added hh_{ggf,vbf} datasets, combining nano v12 and v13 campaigns
• versioning
  • add version tag to output paths
  • implement new format for output paths (not used per default)
• selection
  • remove m_ll cut in DL (move to categorization)
  • use loose lepton collection for jet cleaning and triple muon veto
• categories
  • different set of control regions for SL/DL
  • lepton categories now use one central categorizer both during SelectEvents and after
  • rename selection/categories.py to categorization/categories.py
• bugfixes
  • use correct b-tagger based on configuration for bjet categories
  • ML pipeline sandbox (downgrade numpy)
  • hbw.MLEvaluationSingleFold requires (did require all folds even though it is supposed to require just one)
  • gradient * input method fix (needs some more investigation, though)