Cristin64

dfo-sap-client:
- Field stillingsnavn is now optional, it was used for the
  'stillingsbetegnelse' field in the export. We now check if the
  employment info has this field before adding it.
- Tests have been modified to test this functionality

orgreg-client:
- No changes necessary

dfo-sap-client:
 - Field stillingsnavn is now optional, it was used for the
   'stillingsbetegnelse' field in the export. We now check if the
   employment info has this field before adding it.
 - Tests have been modified to test this functionality
orgreg-client:
 - No changes necessary