Changes w.r.t. 5.1 - Bug fixes when GeoPhysVols with Full physical volumes as children are deduplicated - Add functionallity to the GeoDeDuplicator to switch off deduplication of Shapes, LogVols, GeoTransforms - Disable deduplication by default - Augment early testing in Athena to test simulation & MC simulation in the CI - Memory leak fix in GeoElement - Introduce clone helper function to GeoHelpers.