Implement DELETE /relativepermeability/{record_id} endpoint

• DELETE /api/rafs-ddms/relativepermeabilitytests/{record_id} endpoint is implemented and available on Swagger
• The user should be able to soft delete a record
• Validation cases should be covered with appropriate status codes
• Response should be returned in the interval of 0.1-1 second
• 204 response should successfully indicate a deleted record

Note

• Test the case when Relative Permeability SamplesAnalysis is deleted it should be unlinked from the SamplesAnalysesReport (if it had some in ParentSamplesAnalysesReportIDs)