Cherry pick 27608 and 28101

This is adding two merges from 21.2, !27608 (merged) and !28101 (merged). They add some flexibility to the b-tagging NNs.

changed the description

This merge request affects 1 package:

• PhysicsAnalysis/JetTagging/FlavorTagDiscriminants

added Analysis BTagging JetEtmiss master review-pending-level-1 labels

CI Result SUCCESS (hash 487d03fd)

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 9062]

Changes and CI look good. Approving.

Kira (L1)

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

merged

mentioned in commit f4138c9f

added sweep:ignore label

mentioned in merge request !31005 (merged)