bot_scaling: Refactor resource utilization to make reporting easier.

Refactor the association of resource usage at the application level
easier to collect and report. Moving application to a key will allow
collection of all regions and global within the current collection

Bug: b:170660661
Change-Id: I511a92bfaad32764241d3859780e3b841fa40c58
Reviewed-by: Dhanya Ganesh <>
Commit-Queue: Mike Nichols <>
2 files changed