Display old and new build time per site #59
Description
Currently, in our flamegraph table, we display the build time of each site with the PR. It would be nice to show the build time of each site with master as well, to see per-site differences in build time.
Since some sites take much longer than others to build, their build time kind of dominates the results. Showing build time for both branches per site would allow us to view more subtle changes.