Add Cost&Rate chains to the LS2_v1_Primary_prescale set
Follows on from !44026 (merged)
We need the HLT to not reject any events in HLT-reprocessings in order to collect data for HLT-fail events.
These two chains force this to happen for both the Cost DS stream (for trig cost) and the Main stream (for trig rate)
Tested with
athenaHLT.py -c "setMenu='LS2_v1_Primary_prescale';doL1Sim=True;fpeAuditor=True;" --imf --threads=1 --concurrent-events=1 --nprocs=1 --number-of-events=100 --file=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/TrigP1Test/data18_13TeV.00360026.physics_EnhancedBias.merge.RAW._lb0151._SFO-1._0001.1 --file=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/TrigP1Test/data18_13TeV.00360026.physics_EnhancedBias.merge.RAW._lb0151._SFO-1._0002.1 TriggerJobOpts/runHLT_standalone.py