add a release-based summary/dashboard for QA

[bgrins]

Data source: https://docs.google.com/spreadsheets/d/e/2PACX-1vSUCl7pD9JQK0sQD2ehsswHAuNYzfFR68FVl2ifri-apUgA9UJfkwa2MA2DrMTpDXslDARlBDarkbw3/pub?output=csv

[bgrins]

This needs some though about how it interacts with Filters (i.e. metabug filters)