Solid OIDC Basic Flow

[csarven]

Consider the following:

• including a complete example of HTTP requests/responses that's relevant for all conforming roles that are required by this specification or link to the example (e.g., in Appendix) from #basic-flow.
• link to OIDC Primer's flow for more details ( e.g., /TR/oidc-primer#solid-oidc-flow or https://solid.github.io/solid-oidc/primer/#solid-oidc-flow for ED)