Adapt apps and add stress bc to boundary condition factory

requested review from @m.schoenherr

assigned to @a.wellmann

enabled an automatic merge when the pipeline for f6d67a4d succeeds

added 2 commits

• 996719af - 1 commit from branch irmb:develop
• 2a954aef - Merge branch 'develop' into boundaryConditionFactory

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merged

mentioned in commit bc5b8a97