Enable recurring schedule of Notebooks and Pipelines

[lresende]

Initial requirements:

• Add support for both Airflow and KFP

  • ui
  • cli (low priority)

• Update submit dialog and add a field to specify the recurrence {once (default), hourly, daily, weekly, monthly, yearly }

  • This should be updated for all submission options (notebooks and scripts)
  • on the notebook side, the last schedule option should be persisted and shown as the new default on the next submission
    • The persisted value should be designed to allow for a more complex ui in the future, where you could specify other options from the cron format or what is supported from the backends

From Airflow:

For KFP, some UI examples:

Looks like Kubeflow has enabled a recurring schedule of experiments, and we could use to enable notebooks and pipelines to be scheduled