78 - finalize PRD-027 examples

[EdwinWiseOne]

Closes #78

Move the Core examples down, increase the version numbers, clean stuff up generally, and rework the Tools and github workflow for tetsing.

This was branched from the PRD 027 integration branch, but is targeting main.

[EdwinWiseOne]

I can build and publish all of the examples except for React, which hangs on the "npm run build" step with:

> parcel build --dist-dir ./dist

Note that we can build inside of the github workflow for testing.

[andrewcollette]

Hmmm... would be good to figure out the build failure as it may affect others. I googled briefly for parcel problems and found this, among others: parcel-bundler/parcel#7585

That ticket suggests disabling optimization as a possible workaround (if that is indeed the issue you're having).

[EdwinWiseOne]

Fixed the react build issue!

[andrewcollette]

LGTM. There is just one change; based on past discussions with Amir we are going to remove the Externally-Hosted example. We no longer offer the "built-in" auth that example demonstrates, and the current state of the art for consulting projects uses a different approach. Once that folder is removed it's OK to merge.