Update Elyra Tutorial to use Seldon

[MichaelClifford]

The current tutorial relies on a custom flask app and some oc commands. We should update the tutorial to use Seldon to remove the user's need for interacting with the cluster directly.

[goern]

We should be clear about the MLOps workflow we want to show, the current workflow is pretty simplistic. Seldon seems to be preferred by ODH/RHODS. How do we automate deployment and metrics feedback from a Seldon-based deployment?

[goern]

/kind feature
/triage needs-information

[MichaelClifford]

We now have the seldon operator deployed in the moc zero cluster and can start to update the demo to use seldon.

There are still a couple of problems with it, but it is usable and we have confirmed that we can deploy models and query inference endpoints.

We have opened issues on opf/support and seldon upstream to address them.

[oindrillac]

related #176

[oindrillac]

/assign @oindrillac

[sesheta]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[MichaelClifford]

/lifecycle frozen