Use D3.js for Browsable Overview Of Domains

[sync-by-unito[bot]]

• Create a shortcode to display a D3.js based diagram
• Use the shortcode to provide RIDDL AST hierarchy data to D3 for potentially large domains or subdomains, contexts, and entities.
• To display the hierarchy use one of the hierarchy options documented here.

┆Issue is synchronized with this Jira Task by Unito

[reid-spencer]

Alternatively, use this Zoomable Circle Packing display because it is very interactive and permits the user to explore the domain. Even better if the nodes could be made to link to the documentation pages.