Add an "Alice-Faber" demo instance using the did:webvh plugin

[swcurran]

Please create a document and the supporting artifacts (e.g. dockerfiles, docker-compose file, code updates) that describes how to run through the Alice-Faber demo using the did:webvh plugin. Ideally (but, of course, what do I know?), the code needed will be updates to the existing demo based on a flag (vs. new code) to make it easy for a developer to see what changes are needed when using did:webvh -- and what is not impacted.