VisionX: Make SemanticObjectRelations a feature

This package is not necessarily needed and should therefore be an optional dependency

assigned to @pohl

created branch 278-visionx-make-semanticobjectrelations-a-feature to address this issue

mentioned in merge request !499 (merged)

added type::module label

changed milestone to %Release 23.02.2.0

removed milestone %Release 23.02.2.0

closed with merge request !499 (merged)

mentioned in commit 3fe8d08b

changed milestone to %Release 23.02.2.0