Problem: In testnet1 Grafana dashboard, when Zipkin is disabled, the panels "RSpace operations" and "ReplayRSpace" go blank due to lack of data. Both of them are based on span.processing-time metric.
Cause: span.processing-time metric is generated automatically by Zipkin.
Expected result: Mentioned metrics should be available even if Zipkin reporting is disabled.
Proposed solution: Replace the autogenerated metric span.processing-time with 6 new Kamon.Timer metrics: