Add support for bootstrapping workshops via a learning platform

[pacphi]

See https://docs.eduk8s.io/en/latest/getting-started/installing-eduk8s.html.

We could use k14s kapp to deploy 1-n workshop definitions then deploy a portal for 1-n participants.

Later on, and more aspirationally, we could turn this repo into a workshop itself.

[pacphi]

Might also want to consider a pay-for-use hosted platform like https://strigo.io