MuonGeoModelR4 - Save the TGC sector mapping to StoreGate

Sector mapping is needed by the idHelperSvc to map the 48-fold stationPhi of the TGCs onto the 16-fold sector symmetry of the MS.

This merge request affects 1 package:

• MuonSpectrometer/MuonPhaseII/MuonDetDescr/MuonGeoModelR4

This merge request affects 2 files:

• MuonSpectrometer/MuonPhaseII/MuonDetDescr/MuonGeoModelR4/CMakeLists.txt
• MuonSpectrometer/MuonPhaseII/MuonDetDescr/MuonGeoModelR4/src/TgcReadoutGeomTool.cxx

Adding @apsallid ,@stavrop ,@jojungge ,@kluit ,@rosati ,@pscholer as watchers

added MuonSpectrometer Upgrade main review-pending-level-1 labels

CI Result SUCCESS (hash 5a99bc4d)

	Athena	AthSimulation
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 5379] (remote access info)

removed review-pending-level-1 label

added review-approved label

merged

mentioned in commit 1dd72fa8