Katib: Allow running KFP components as Katib Experiments

[fvde]

/kind feature

Describe the solution you'd like
As a user of kubeflow pipelines, there is quite a gap between KFP and Katib. Clean KFP code dictates that I put my operations in isolated components, such as (XGBoost Training). Katib on the other hand requires me to dockerize my training. As a katib _and_ KFP user it would be amazing to submit components to katib for running experiments on.

Anything else you would like to add:

• Fairing could help under the hood, to dockerize the component?

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[gaocegege]

/cc @johnugeorge @andreyvelich

I think it should be our highest priority task in the next release. Thanks for the issue!

[andreyvelich]

Thank you for creating the issue @fvde.
We will start work on that after the 0.10 release.

/cc @Bobgy @jlewi

[andreyvelich]

We updated Katib component for KFP.
@fvde Check few examples here: https://github.com/kubeflow/pipelines/tree/master/samples/contrib/kubeflow-katib.