Draft: Attempt to use NSW for Beam-Background veto
Related to the discussion in ATLASNCB-27.
This MR generalizes the BeamBackgroundFiller.cxx to work with NCB_TrackMuonSegments from either CSC for NSW. I renamed most variables to 'SW'-something as 'small wheel', either old or new. All cuts, etc are unchanged wrt the Run-2 version.
The problem:
With this setup, we veto 23 out of the 25 events of the standard q449 test (eg Run-3 data reco). The default input of q449 is data22_13p6TeV.00431493.physics_Main.daq.RAW._lb0525._SFO-16._0001.data.
As next step, I'll try with an input-file from this year.