#1864 - Scale Resource Reporting

[loganr-w]

Checklist

• [x] manage.py test passes
• [x] tests are included
• [x] migrations are included
• [x] documentation is changed or added

Affected app(s)

scale scheduler.

Description of change

Added end to get scale resources for pending, queued, and running jobs, as well as the total available resources for the cluster. Added tests for new functions. Added documentation for new rest end-point.