p2p: add new ddb messages metrics
Add DDB messages metrics in P2p stats
section of full
, basic
and with-logs
dashboards.
Works with a node from branch https://gitlab.com/nomadic-labs/tezos/-/tree/vivien@ddb_metrics_sent-received-msgs
until tezos/tezos!8908 (merged) is merged.
Fix #10 (closed).