Additional adstash metrics
At the Feb 2023 f2f, Brian Bockelman walked us through the kind of adstash-based metrics used to monitor the OSPool.
We should add at least some of these metrics to the es_loganalysis
reports and to the grafana dashboard.
Let's use this ticket as a meta-issue and detail the new metrics as specific Tasks.
(This should supersede and closes #3 (closed))