include suppressed indicators in z39.50 response

Overview: Search for an instance that has two holdings.  One of the holdings should be suppressed from discovery.

This given search is not possible in the Inventory Search and filter UI. Solving the issue using Z39.50 will will address the temporary work-around of including the 'suppressed' indicator in the z39.50 response.  This will provide an indication that a holdings (and item) record is suppressed.

Usecase:

As a staff user where the library lends via Borrow Direct / Relais - this is an issue for Cornell.

These results can also be seen with this graphql query:
 

 {"query": "query {instance_storage_instances
(query: \"title=Taishun ding bu long and (id=* 
NOT discoverySuppress==true 
NOT holdingsRecords.discoverySuppress==true) \") 
{totalRecords instances {id title holdingsRecords2
{id instanceId callNumber}}}}"}
 

This query should return one instance and one holding record and an empty result is what is being returned.  This impacts the z39.50 results when configured to exclude suppressed holdings.

Additional Information:
URL: For more details see https://dev.folio.org/faqs/explain-cql/
Interested parties: Philip Robinson Anne L. Highsmith

Related issue: ZF-50