Create ratio histogram graphs

We should create ratio histogram graphs like we have for onbasca: tpo/network-health/onbasca#152 (closed). And again, we can think about conditions for alerting us, so we are better informed things go south with the network.

added Backlog Sponsor 112 Q3 S112-O1 labels

mentioned in issue tpo/network-health/team#299 (closed)

marked this issue as related to tpo/network-health/team#312 (closed)

added Q4 label

removed Q3 label

added Q1 label and removed Q4 label

mentioned in issue #29 (closed)

removed Backlog label

added Doing label

assigned to @juga

mentioned in commit juga/grafana-dashboards@bf77d00f

mentioned in commit juga/grafana-dashboards@baa6c2c3

changed title from Create ratio historgram graphs to Create ratio histogram graphs

mentioned in merge request tpo/tpa/grafana-dashboards!4 (merged)

mentioned in commit tpo/tpa/grafana-dashboards@116bc525

closed

Add time spent in January

added 7h of time spent

mentioned in issue #33

mentioned in issue #36 (closed)

mentioned in issue #37