Add ATLFASTIIF_G4MS simulator; sweep from 21.3

This commit brings in the ATLFASTIIF_G4MS simulator. It also includes the sweep of MRs 29327 and 29332 from the 21.3 branch.

added Simulation master labels

This merge request affects 1 package:

• Simulation/ISF/ISF_Config

Adding @jchapman ,@vpascuzz as watchers

added review-pending-level-1 label

changed the description

Jenkins please retry a build

mentioned in merge request !30955 (merged)

CI Result SUCCESS (hash c6c02b9c)

	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 10556]

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

merged

mentioned in commit e48138e2

mentioned in merge request !29332 (merged)

mentioned in merge request !29327 (merged)

added sweep:ignore label