Draft: CPAlgorithms: add particle-level objects

This MR migrates the algorithms related to particle-level truth objects (stable particles before detector simulation) from TopCPToolkit. I provide separate algorithms and configuration blocks for:

• electrons
• muons
• jets
• photons
• taus
• neutrinos
• overlap removal
• MET

Users can further run existing algorithms on these truth-level objects, e.g. IFF classification, pT/eta selection, container thinning, event selection, resonance reconstruction etc.

Remains to be done before undrafting:

• photons
• taus
• MET
• overlap removal
• finalise the example YAML config
• component factory preloader

Example YAML config:

PL_Electrons: {}

PL_Muons: {}

PL_Jets:
  containerName: 'AntiKt4TruthDressedWZJets'
  PtEtaSelection:
     minPt: 30000.0
     maxEta: 2.5

Thinning:
  - containerName: 'TruthElectrons'
    outputName: 'OutTruthElectrons'
    selectionName: ''
  - containerName: 'TruthMuons'
    outputName: 'OutTruthMuons'
    selectionName: ''
  - containerName: 'AntiKt4TruthDressedWZJets'
    outputName: 'OutTruthJets'
    selectionName: ''

Output:
  treeName: 'particleLevel'
  vars:
    - 'EventInfo.mcChannelNumber -> mcChannelNumber'
    - 'EventInfo.runNumber -> runNumber'
    - 'EventInfo.eventNumber -> eventNumber'
  metTermName: 'NonInt'
  containers:
      'PL_': 'EventInfo'
      'PL_el_': 'OutTruthElectrons'
      'PL_mu_': 'OutTruthMuons'
      'PL_jet_': 'OutTruthJets'