Updated prototype shared-responsibility model.

[nikitawootten-nist]

Committer Notes

This PR supersedes #1999. The new prototype-shared-responsibility-model-rebased on usnistgov/OSCAL contains only metaschema updates from the previous prototype rebased against main. This PR contains work by @iMichaela making further updates to the model in preparation for an RC1 after community review.

The prototype shared-responsibility model was updated and the documentation was reviewed. This version of the model is ready for review and integration into the OSCAL v1.2.0 release candidate. The prototype was locally tested with the latest metaschema-xslt/document-display-deprecation

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Changes to Core Features:

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[nikitawootten-nist]

@david-waltermire continuing the conversation, here is a clean history. The prototype branch has also been rebased and cherry picked against develop.

[iMichaela]

@nikitawootten-nist - The schemas and resolved metaschemas are generated correctly, without errors. No validation errors exist so the commits fixing them were all incorporated. Building locally the reference site is not working though from the new prototype branch due to name convention of the branch not being respected. I could not check the documentation locally.

[iMichaela]

@nikitawootten-nist - I found that the oscal_control-common_metaschema.xml file did not have the schema-version updated since 1.0.4 release. I am not aware of any reason why. Are you? All other files were updated.