Modify coincidence far call
There are three sets of improvements here:
- Block calculation of a joint FAR for SNEW-GW coincidences (decision of RAVEN review committee, suggested by @tito-canton )
- Get sky map from the superevent since there will be support for subthreshold annotations
- Reduce a poll to gracedb by changing the arguements to superevent/event dictionaries
Edited by Brandon Piotrzkowski