Add a few more historical events to the acceptance tests
Some proposals:
- A couple BBH events with precise skymaps: S200224ca and S200311bg (especially the latter, clearly detectable in three detectors)
- A very "ringy" skymap (HL-only event): S190707q
- A single-detector skymap (I see S190930t on GraceDB, though I forget what that ended up like in GWTC)