Add ratio KeyValue in the Bandwidth File

so that it doesn't have to be calculated a posteriori again, as https://gitlab.torproject.org/tpo/network-health/bwauthealth does.

Talking with @mikeperry by irc, this wouldb be useful for s112 O3.5.

added Project 112 Roadmap::Future S112-O3 labels

assigned to @juga

mentioned in issue onbasca#155

mentioned in issue #40157 (closed)

added Q2 label

added Next label

removed Roadmap::Future label

mentioned in issue team#305 (closed)

Estimate: 6h * 1.5 (moderate uncertainty) = 9h

changed time estimate to 9h

mentioned in issue tpo/core/torspec#210 (closed)

added Doing label and removed Next label

mentioned in merge request !168 (closed)

mentioned in merge request !169 (merged)

closed with commit e9615982

closed with merge request !169 (merged)

Added time spent in June

added 4h of time spent

marked this issue as related to team#313

mentioned in issue team#313