S1-GUNW-COSEISMIC

Epic for this feature: https://aria.atlassian.net/browse/ARIA-42

Design for cosseismic pipeline: https://docs.google.com/presentation/d/10JySuM_PTUutY9vzk5FuUkCHo-hhQNxQ4NIhHmMtNsw/edit#slide=id.p