Documented API update from RFC 0072

[mesemus]

Description

This PR contains documentation of API changes proposed in RFC 0072.

Checklist

Ticks in all boxes and 🟢 on all GitHub actions status checks are required to merge:

• I'm aware of the code of conduct.
• I've created logical separate commits and followed the commit message format.
• I've targeted the master branch.
• If this documentation change impacts the current release of InvenioRDM, I will backport it to the production branch following approval or indicate to a maintainer that it should be backported.

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[mesemus]

Connected pull requests:

RFC 0072
Implementation in invenio-records-resources
S3 multipart implementation
invenio-rdm-records - depends on this PR