Add units-service to dev

Add new microservice with its functionalities, e.g. autosuggest of units of measurements to dev

added scope::Backend status::Doing + 1 deleted label

requested review from @mweise

assigned to @cornelia.michlits

added 55 commits

• c07c9dda...34c4aa26 - 54 commits from branch dev
• 648e5c4a - Merge branch 'dev' into 104-ontology

Compare with previous version

merged