Don't start running Batch submitted job until a specified job completes

[tamuri]

With the introduction of suspend-resume functionality, users will be able to resume runs from a suspended run. Use job dependencies to allow the user to submit a job which will be suspended, and immediately submit the resuming job. The resuming job will only start running once the suspending job completes.

Recording here because at first glance this is a bit more complicated than I thought. It requires reworking the way we bundle up the tasks for the job because Azure support task dependencies, not job dependencies.