Diagram of models and/or instance

[xee5ch]

User Story:

As a Metaschema developer, in order to best understand how to mentally model or implement algorithms to process document instances conformant to Metaschema models, I would like functionality in the library to emit Mermaid (be it Flow, Class, or Mindmap variant), GraphViz, or other visualizations of the graph structures of a document or model in a format preferred by developers and users in the community.

Goals:

Have the ability to visualize a document instance and its associated model to help understanding and development of Metaschema-aware tools.

Dependencies:

N/A

Acceptance Criteria

• [ ] All website and readme documentation affected by the changes in this issue have been updated. Changes to the website can be made in the docs/content directory of your branch.
• [ ] A Pull Request (PR) is submitted that fully addresses the goals of this User Story. This issue is referenced in the PR.
• [ ] The CI-CD build process runs without any reported errors on the PR. This can be confirmed by reviewing that all checks have passed in the PR.

[david-waltermire]

I have the basic code working in #78 to generate a mermaid diagram for an arbitrary Metaschema module. A CLI command is still needed to instrument this API to fully address this issue.