APIv2: Add `skip_duplicates` option for scan import
APIv2: Add `skip_duplicates` option for scan import

On import, skip duplicates of active or false positive findings for the
same product if the `skip_duplicates` option is set to `True`.

OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo