Initiate Grafana dashboard setup

[will-corcoran]

Guillaume from Zeam leading the effort to coord with Devops - requesting YAML configs from Ream and Quadrivium.

Ream has a template

[unnawut]

What ream has now (not comprehensive, we'll likely want to track more data): ReamLabs/ream#709

[KatyaRyazantseva]

Grafana dashboards are currently stored in the metrics specs repo. Here is an example of the interop dashboard. The clients have implemented metrics from the specs which can be monitored on the dashboard.