Pipelines: Create a pipeline-oriented Katib tutorial

[sarahmaddox]

Create a pipeline-oriented hyperparameter tuning (Katib) example, and use one or more prebuilt (reusable) Kubeflow Pipelines components.

We probably need to develop a reusable component as well as the tutorial, to fill any gaps in our current supply of reusable components.

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[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[jtfogarty]

/area docs
/priority p2

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.