[RFE] Auto-generate combined --report-available + --report-scheduled

[sadsfae]

With the forthcoming inclusion of reporting functionality

https://review.gerrithub.io/c/redhat-performance/quads/+/475511

We should provide up-to-date generated html views of relevant, nicely formatted --report-available and --report-scheduled data in a simple, statically generated page. Start from here and evolve as needed.