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Draft: Using right tracks for isolation in gsf refitted electron trigger

Debottam Bakshi Gupta requested to merge dbakshig/athena:gsftrackIsolation into master

Correcting gsf refitted tracks for TrigTrackIsolationTool in the gsf refitted electron triggers. Currently TrigTrackIsolationTool is using only precisionTracks (not the refitted one) for gsf refitted electron (https://gitlab.cern.ch/atlas/athena/-/blob/master/Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Egamma/TrigEgammaFactories.py#L80). This bug has been noticed and is being resolved in this MR. I would like to draw the attention of @jdevivi and @fernando to the reduction of counts of some gsf triggers with this change

TrigEgammaPrecisi..._ivarloose_L1EM22VHI  53   0    INFO ptvarcone20 :42163.2 input.electron->pt(): 37411
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  53   0    INFO relptvarcone20 = ptvarcone20/input.electron->pt(): 1.12703
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  53   0    INFO relptvarcone20: 1.12703 is greater than m_RelPtConeCut:  'RelPtConeCut':0.100000
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  53   0    INFO Final pass: 0
...
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  42   0    INFO ptvarcone20 :36115.1 input.electron->pt(): 34326
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  42   0    INFO relptvarcone20 = ptvarcone20/input.electron->pt(): 1.05212
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  42   0    INFO relptvarcone20: 1.05212 is greater than m_RelPtConeCut:  'RelPtConeCut':0.100000
TrigEgammaPrecisi..._ivarloose_L1EM22VHI  42   0    INFO Final pass: 0

As you can see in most of the cases the relptvarcone20 is exceeding 'RelPtConeCut':0.100000 that causing to fail the selection of the event. I would like to confirm this logic before going ahead with this MR since it reduces the counts of isolated electron triggers drastically. The Test used for the output is

athena.py --imf --perfmon --threads 1 --concurrent-events 1 --filesInput '/eos/home-d/dbakshig/data17_13TeV.00339070.physics_Main/data17_13TeV.00339070.physics_Main.merge.DRAW_EGZ.f887_m1831._0152.1' --evtMax 100 --skipEvents 0 -c 'isOnline=True;doWriteBS=False;doWriteRDOTrigger=True;forceEnableAllChains=True;selectChains=["HLT_e26_dnntight_gsf_ivarloose_L1EM22VHI"];setGlobalTag="CONDBR2-HLTP-2018-01"' TriggerJobOpts/runHLT_standalone.py 2>&1 |tee electron_ManyEvents.log

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