Use Algebra & StringHelpers from ActsGeoUtils package

Johannes Junggeburthrequested to merge
jojungge/athena:GeoUtilsDupl into main

Few of the stuff in !66630 (merged) is copied from the MuonReadoutGeometry package. Disentangle the duplication by including the ActsGeoUtils instead.

Edited by Johannes Junggeburth

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