[WIP] k4MLJetTagger implementation

[saracreates]

BEGINRELEASENOTES

• [WIP]
• add k4MLJetTagger with flag --enableMLJetTagger to CLD reconstruction
• set model used for inference with --MLJetTaggerModel (default is set to model_ParT_ecm240_cld_o2_v5. Model types can be chosen from ./CLDConfig/HighLevelReco/models_MLJetTagger.yaml)
• Every time a new tagger is implemented add the information about it as a new entry in ./CLDConfig/HighLevelReco/models_MLJetTagger.yaml.

ENDRELEASENOTES

[saracreates]

@tmadlener helped me to find the issue why the JetTag collections are not attached (Thank you!). I am using svc = IOSvc("IOSvc") in my tagger implementation while CLDReconstruction.py still uses PodioInput and PodioOutput

It is not possible to add the tagger output to PodioOuput. Therefore, we try to switch to IOSvc in CLDConfig

[saracreates]

The RefinedJetTag_X collections are now attached to the output.

There are still things to modify / clean up the CLDReconstruction.py

• These changes only work for EDM4hep output. Adopt it to work with LCIO too!
• Instead of simply taking the input files use the dedicated function create_reader. Don't know how what read is and how to define it with IOSvc . Once modified, turn on this again.
• Use create_writer functions for outputs too

[Zehvogel]

I would suggest that we:

• wait for Add utilities to facilitate the handling of the different I/O formats and related conversions k4MarlinWrapper#234
• change over to the IOSvc in a separate PR ([BREAKING] Switch to using the IOSvc #77)
• then rebase this one

Making these changes should be very straightforward, but our test/validation coverage is not great, so we might end up spending a lot of time on that :/

[saracreates]

@kjvbrt found a bug. If --enableMLJetTagger is not set, for some reason no new collections are attached to the ouptut file at all. E.g. SiTracks, RefinedVertexJets, PrimaryVertices or PandoraPFOs are missing. I don't understand where this is coming from yet as the flag --enableMLJetTagger only 1) converts LCIO collections to edm4hep and 2) adds the algorithm to the list. It does not modify the last processor. Maybe this has something to do with switching to IOSvc...?

[Zehvogel]

@kjvbrt found a bug. If --enableMLJetTagger is not set, for some reason no new collections are attached to the ouptut file at all. E.g. SiTracks, RefinedVertexJets, PrimaryVertices or PandoraPFOs are missing. I don't understand where this is coming from yet as the flag --enableMLJetTagger only 1) converts LCIO collections to edm4hep and 2) adds the algorithm to the list. It does not modify the last processor. Maybe this has something to do with switching to IOSvc...?

We would need to see the exact setup for this to say anything. I cannot reproduce that in #78 where I put both the change to the proper change to the IOSvc (#77) and the relevant parts from this PR together into one. There all the collections seem to be there without the flag.

[jmcarcell]

Closed in favor of #78