We need to make the podinfo package in this repo a better example

[Racer159]

Currently the podinfo package tests the tasks in this repository but it isn't the best example of a UDS package. To improve this we should:

1. Add flavors to the package (upstream, registry1, unicorn)
2. Add a config chart instead of manifests
3. Add authentication with authservice (pending uds-core update) UPDATE: this was released

[Racer159]

We may also need to swap podinfo for an example that can be found in all three registries

[andrewg-xyz]

Believe the intent is mostly satisfied by NGINX example. (which may move to a dedicated repo #231)

However, I found lingering oscal-component which should be updated/cleaned up potentially.