init script option to submit pod info to solid community registry

We discussed it today during Solid Community Call, actually @jaxoncreed suggested it could go into init script.

I think to get started we can just have a private registry managed by solid community (just few people having access to data). Minimal data I would see needed:

• server-uri
• support-email

Later it can act as seed for public solid providers directory, for now it would at lest give community some notion of how many pods got deployed out there and contact list where we could now and then send out a survey requesting feedback about their deployments.

Beginne damit, das Init-Skript zu lokalisieren und zu prüfen, wie Deployment-Optionen definiert sind. Kläre den Endpunkt der privaten Registry und das Übermittlungsverhalten. Ermittle anschließend, wie server-uri und support-email erfasst und übertragen würden. Als abgeschlossen gilt die Aufgabe, wenn eine optionale Init-Skript-Option diese Felder an die Solid Community registry übermitteln kann.