When running in AthenaMT, we only want to load the parametrization once.
For compatibilty with AthenaMT running the simulators themselves have to be AlgTools
though, so it makes sense to load the parametrization in a separate Service
which will then only be loaded once.

Making this change in the 21.0 branch initially, to make it easier to sweep changes to the parameterization
between 21.0 and master in the future.

Only compare RDO outputs in OverlayMonitoringRTT

See merge request atlas/athena!28419

Address ATLPHYSVAL-628

See merge request atlas/athena!28444

Manual sweep of !28252 from 21.3 to 21.0: Use only diff-root in regression test. Fixes ATLASSIM-4346

See merge request atlas/athena!28450

Use only diff-root in regression test. Fixes ATLASSIM-4346

See merge request atlas/athena!28252

(cherry picked from commit 97ba4ff0c4ac728dd85a2450f9e4de09ff427edb)

7d75efe8 Use only diff-root in regression test. Fixes ATLASSIM-4346

DisplacedSoftPion TrackPatternRecoInfo

See merge request atlas/athena!28312

Fix typo in test_AtlasG4_CavernBg_EVNT2TR.sh SimCoreTests ART script

See merge request atlas/athena!28371

Use leptonDphiThreshHnl flag in PhysDESDM_HNL.py (ATLDHNL-19)

See merge request atlas/athena!28346

Fixing typo pointed out in ATLASSIM-4367.

Fix for BS ART test in TrigAnalysisTest (ATR-20591)

See merge request atlas/athena!28245

Move to const DataHandle

See merge request atlas/athena!28290

Electron Reco for displaced decays

See merge request !28159

adding SiSpacePointsSeedMaker_TrkSeeded into SiTrackMaker_xk; seting SiSpacePointsSeedMaker_TrkSeeded for DisplaceSoftPion reconstruction

Bug fix for incorrect BCID from L1MUEndcap to MuCTPI in MC for 21.X (ATR-20569)

See merge request atlas/athena!28173

TRT EC residuals vs pt and per wheel

See merge request atlas/athena!28229

Add p4 versions of CscRawData converters

See merge request atlas/athena!28231

add skip CHAIN_DUMP in test_run1_bstoesdaod_build.sh

	modified:   Trigger/TrigValidation/TrigAnalysisTest/test/test_run1_bstoesdaod_build.sh

Towards TRT EC alignment

See merge request atlas/athena!28169

Add unit test and CSC channel hash translators

See merge request atlas/athena!28146

Manual Sweep of !28102 from 21.3 to 21.0: Fix regression test for test_AtlasG4_CavernBg_EVNT2TR.sh (ATLASSIM-4346)

See merge request atlas/athena!28136

reordering of some variables to keep them in same order as initialization. Avoid compilation warning

Changes for large radius electron production. Updated matching and  allow for the pixel hit requirement to be removed from the SuperCluster building