Add request timings and count histograms to telemetry. Closes #3552#3622

lexi-lambda merged 3 commits intohasura:masterhasura/graphql-engine:masterfrom

jberryman:3552-gather-usage-telemetry-for-cachejberryman/graphql-engine:3552-gather-usage-telemetry-for-cacheCopy head branch name to clipboard