Support Hyperparameter Optimization in Kubeflow SDK

[kramaranya]

We want to migrate Katib SDK to the Unified SDK, similar to what did with Trainer SDK.

This is the tracking issue:

• Investigate Katib SDK and see how can we migrate it before creating new APIs
• Investigate whether we can release Kubeflow SDK to PyPI with git reference for modules
• chore(models): Move models into kubeflow_katib_api package katib#2579
• feat: Hyperparameter Optimization APIs in Kubeflow SDK #124
• get_job() API for OptimizerClient
• list_jobs() API OptimizerClient
• delete_job() API OptimizerClient
• Testing

[andreyvelich]

/retitle Support Hyperparameter Optimization in Kubeflow SDK

[andreyvelich]

/milestone v0.2

[andreyvelich]

/area optimizer