Set limits on ephemeral storage

[IanKWatts]

Putting this back in the Backlog until we're ready to take it to prod.
See branch ephemeral_storage of devops-fulfillment-pipeline

Describe the issue
Set limits on ephemeral storage usage to prevent the possibility of someone inadvertently using too much disk space on a node when using emptyDir.

What is the Value/Impact?
Add another sanity check to improve node robustness.

What is the plan? How will this get completed?
Update the default quota and limit range for user projects.

Identify any dependencies
n/a

Impact of work

• Does training material need to be updated?
• Does documentation need to be updated?
• Do we need to make an announcement?
• Does this change our supported services responsibilities?

Definition of done

• Provisioner updated and tested in lab
• Prod Provisioner updated
• (optional) Do a full sync to push the changes to all user namespaces