Implementation of TrigEFTauDiKaonHypoTool for Run-3 meson+gamma triggers

Implements the purely tau meson-mass hypothesis tool, TrigEFTauDiKaonHypoTool, for the following trigger chains used in exclusive meson+photon Higgs/Z/W boson decay searches:

• HLT_g25_medium_tau25_dikaonmass_tracktwoMVA_50mVis10000
• HLT_g25_medium_tau25_kaonpi1_tracktwoMVA_50mVis10000
• HLT_g25_medium_tau25_kaonpi2_tracktwoMVA_50mVis10000
• HLT_g25_medium_tau25_singlepion_tracktwoMVA_50mVis10000
• HLT_g35_medium_tau25_dipion3_tracktwoMVA_60mVis10000

Related JIRA ticket: https://its.cern.ch/jira/browse/ATR-22644

The chain segments dikaonmass, kaonpi1/2, singlepion and dipion3 are purely tau hypotheses that use the TrigEFTauDiKaonHypoTool class, which has been ported from its Run-2 equivalent. The chain segments are entered in the tau selection chain-part in the signature dictionary. This hypothesis is based on TrigEFTauMVHypoTool, and is implemented on the menu side as an alternative option in within TrigEFTauMVHypoToolFromDict.

The chain segment 50mVis10000 is a tau+photon combo invariant mass hypothesis. This will be implemented in a later merge request.

This implementation does not affect chains that use the standard TrigEFTauMVHypoTool tool.

Trigger/TriggerCommon/TriggerMenuMT/python/HLTMenuConfig/Menu/LS2_v1.py

@@ -697,7 +697,8 @@ def setupMenu():
         ChainProp(name='HLT_g25_medium_tau25_kaonpi1_tracktwoMVA_L1EM22VHI', l1SeedThresholds=['EM22VHI','TAU12'], stream=[PhysicsStream], groups=['RATE:TauGamma', 'BW:Tau', 'BW:Egamma']),
         ChainProp(name='HLT_g25_medium_tau25_kaonpi2_tracktwoMVA_L1EM22VHI', l1SeedThresholds=['EM22VHI','TAU12'], stream=[PhysicsStream], groups=['RATE:TauGamma', 'BW:Tau', 'BW:Egamma']),
         ChainProp(name='HLT_g25_medium_tau25_singlepion_tracktwoMVA_L1EM22VHI', l1SeedThresholds=['EM22VHI','TAU12'], stream=[PhysicsStream], groups=['RATE:TauGamma', 'BW:Tau', 'BW:Egamma']),
-        ChainProp(name='HLT_g35_medium_tau25_dipion3_tracktwoMVA_L1EM22VHI', l1SeedThresholds=['EM22VHI','TAU12'], stream=[PhysicsStream], groups=['RATE:TauGamma', 'BW:Tau', 'BW:Egamma']),    ]
+        ChainProp(name='HLT_g35_medium_tau25_dipion3_tracktwoMVA_L1EM22VHI', l1SeedThresholds=['EM22VHI','TAU12'], stream=[PhysicsStream], groups=['RATE:TauGamma', 'BW:Tau', 'BW:Egamma']),
+    ]
     TriggerFlags.HeavyIonSlice.signatures  = TriggerFlags.HeavyIonSlice.signatures() + []
     TriggerFlags.BeamspotSlice.signatures  = TriggerFlags.BeamspotSlice.signatures() + [
         ChainProp(name='HLT_beamspot_allTE_trkfast_BeamSpotPEB_L1J15',  l1SeedThresholds=['FSNOSEED'], stream=['BeamSpot'], groups=['PS:Online', 'RATE:BeamSpot',  'BW:BeamSpot']),