Cherry-picking JSSMTools cleanup

This cherry-picks the changes from !29469 (merged) that clean up the JetSubStructureMomentTools package

added 295 commits

• 09f41bce...3628cc86 - 294 commits from branch atlas:master
• fef1b8df - Merge branch 'master' into 'master-JSSMTClean'

Compare with previous version

This merge request affects 1 package:

• Reconstruction/Jet/JetSubStructureMomentTools

Adding @goetz ,@mleblanc as watchers

added JetEtmiss Reconstruction master review-pending-level-1 labels

CI Result SUCCESS (hash fef1b8df)

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 1
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 9922]

I scanned through the changes and all of them looked good (also this is a cherry pick). The Warnings in the CI are not related. Approving.

Kira (L1)

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

merged

mentioned in commit 28a9f984

added sweep:ignore label