Merge 21.0.100 into 21.3 branch

This commit merges nearly all the changes that were made to the 21.0 branch between the release release/21.0.100 and the previous release release/21.0.99.

Below is a full list of merge requests that were accepted between these two tags:

• !25081 (merged) : Add SimulateCavern simFlag, which can be used independently of CavernBG and cosmics simulation
• !25077 (merged) : Fix a problem of HnlSkimmingTool and code cleanup (ATLDHNL-21)
• !25066 (merged) : Sweeping !25041 (merged) from 21.2 to 21.0.
• !25053 (merged) : Added q440 test to TCT for pileup check
• !25036 (merged) : Add bunch patterns for Run 3 tests
• !25026 (merged) : Revert changes of SCT_FrontEnd.cxx of MR !20456 (merged) to fix ATLASSIM-4227
• !24990 (merged) : Add an ART test for qball digitization
• !24429 (merged) : Inner Detector Alignment Performance Monitoring to use MCP muon tagging
• !24967 (merged) : Fix beam conditions propagation for the standard digitisation (ATLPHYSVAL-619)
• !24920 (merged) : Make EventAuxInfo_v1 data members public
• !24921 (merged) : Set ParticleSimWhiteList to True by default in SimFlags
• !24931 (merged) : Sweeping !24861 (merged) from master to 21.0.
• !24796 (merged) : Low energy particle removal for FCS
• !24657 (merged) : Fix for test_athena_G4AtlasCosmic (ATLASSIM-4186)
• !24664 (merged) : DataHeader_p6 reading
• !24567 (merged) : Extra SM mesons
• !24627 (merged) : Sweeping !24584 (merged) from 21.3 to 21.0.
• !20456 (merged) : Sweeping !20374 (merged) from 21.3 to 21.0.SCT RDO updates for overlay MC (ATLASSIM-3903)
  Removed from sweep due to incompatibility:
• !24737 (merged) : Fix for broken HepMcParticleLinks seen during MDT_Digitization (ATLASSIM-4225)

Link to the full diff between release/21.0.100 and release/21.0.99 is available at https://gitlab.cern.ch/atlas/athena/compare/release/21.0.99...release/21.0.100

added 21.3 full-unit-tests sweep:from 21.0 sweep:ignore labels

changed the description

This merge request affects 18 packages:

• Generators/EvgenProdTools
• InnerDetector/InDetMonitoring/InDetPerformanceMonitoring
• PhysicsAnalysis/SUSYPhys/LongLivedParticleDPDMaker
• Reconstruction/egamma/egammaValidation
• Simulation/Digitization
• Simulation/G4Atlas/G4AtlasApps
• Simulation/G4Atlas/G4AtlasServices
• Simulation/G4Atlas/G4AtlasTools
• Simulation/G4Extensions/Mesons
• Simulation/G4Utilities/G4UserActions
• Simulation/ISF/ISF_Config
• Simulation/ISF/ISF_Core/ISF_Services
• Simulation/ISF/ISF_Geant4/ISF_Geant4Tools
• Simulation/ISF/ISF_HepMC/ISF_HepMC_Tools
• Simulation/SimulationJobOptions
• Simulation/Tests/DigitizationTests
• Tools/Tier0ChainTests
• Tracking/TrkVertexFitter/TrkVertexFitters

Adding @zmarshal ,@hoide ,@ctreado ,@cohm ,@jchapman ,@szambito ,@kdipetri ,@oabouzei ,@ykeisuke ,@vpascuzz ,@leejr as watchers

added Analysis Digitization Egamma Generators InnerDetector Reconstruction Simulation Tools Tracking review-pending-level-1 labels

CI Result FAILURE

	Athena
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-25152-2019-07-26-15-19
Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST 40100]

One unit test failed:

322/934 Test #279: RootCollection_read_test_ctest ...........................................***Failed    3.16 sec
Read test starting...
Creating CollectionService
Creating Collection Description
Creating Collection
Error in <TFile::ReadBuffer>: error reading all requested bytes from file test_collection.root, got 236 of 300
Error in <TFile::Init>: test_collection.root failed to read the file type data.
---> Exception:
ROOT cannot "UPDATE" file test_collection.root ( POOL : "RootCollection::open" from "RootCollection" )

I think that this is unrelated to the changes in this MR, certainly the package mentioned isn't updated.

added review-pending-level-2 label

All looks OK, except the tests. Just need confirmation from L2.

-Amartya(L1 shifter)

I think this can be approved.

Tadej (L2)

added review-approved label and removed review-pending-level-1 review-pending-level-2 labels

mentioned in commit fd6e77c4

merged

mentioned in merge request !26017 (merged)

mentioned in commit e5917b77