Workflow changes MVP

[richard-jones]

• PR: [when the PR is created, put a link to it here. DO NOT use the "linked PR" feature]
• User Test Scripts: [when there are user test scripts available link them here]

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Determine the minimal set of changes to Invenio to support the most basic aspects of the Imperial workflows. Open issues to describe the implementation work.

Acceptance Criteria

List the criteria which must be met for the issue to be considered complete

• A set of issues describing the implementation work required