Soft deletes

[tezlm]

Is your feature request related to a problem? Please describe.

I need to be able to not return results that reference deleted data, but don't need full gdpr deletes.

Describe the solution you'd like

Some way to mark documents as deleted, maybe with a way to hard delete any soft deleted documents.

Describe alternatives you've considered

• I could wait for mutable fields, then filter out deleted stuff, but this doesn't exist yet
• I could filter outside of tantivy, but this could have reduced performance if the search query returns a lot of deleted data