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Add new code to allow creation of electron and muon free particle flow jets (V2)

Mark Hodgkinson requested to merge atlas-particleflow-software/athena:athena-mhodgkin_addNewPFlowJets into main

This includes updates to JetPFlowSelectionAlg.cxx to add options to remove all neutral contributions from particle flow jets that belong to electrons or muons of a given particle ID level.

On the python side new configuration functionality has been added to allow users to make use of these workflows.

This should not change the output of standard particle flow jets and hence should preserve frozen tier0 for jets.

The new muon free jets rely on an additional decoration that is added to charged FlowElement - thus this aspect violates frozen tier0 and adds a new decoration.

Edited by Mark Hodgkinson

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