Apply sTGCSimHit and MMSimHit to "Simulation" package

Jing Chenrequested to merge
jichen/athena:appMMsTGCSimHitToMaster2604 into master

sTGCSimHit and MMSimHit had been applied to 21.3. Create this merge request for master. Manual sweep of !22581 (merged).

Edited by John Derek Chapman

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