Summary

Optionally include gridfs metadata in chunks objects / allow a separate piece of metadata to be included in chunk objects.  This enables users to store multi-tenent gridfs data in the same chunks and metadata collections, if they want to (see the attached Jira ticket).

Motivation

Who is the affected end user?

GridFS users in multi-tenent environments who want to store all data in the same chunks and metadata collections.

How does this affect the end user?

users either cannot do this; or must work around this limitation (ex: the Nodejs user uses custom object ids that include tenent ids inside of them).

How likely is it that this problem or use case will occur?

n/a

If the problem does occur, what are the consequences and how severe are they?

n/a

Is this issue urgent?

no.

Is this ticket required by a downstream team?

no.

Is this ticket only for tests?

no.

Acceptance Criteria

Add metadata to the chunks collection in GridFS collections.