Allow for a custom generation executable parser
As part of bilby_pipe!583, I added a flag to allow the user to pass a custom generation executable parser (analogous to the existing --analysis-executable-parser
flag, see https://lscsoft.docs.ligo.org/bilby_pipe/master/user-interface.html#job-submission-arguments). This MR allows parallel_bilby_generation
to also allow for a custom generation executable parser.
Once bilby_pipe!583 has been merged, and a release subsequently made, I will update the bilby_pipe
version requirement.