Add the ability for Zuul to accept inputs from multiple trigger
Pipelines are associated with exactly one trigger, which must now
be named in the configuration file.
Co-Authored-By: Monty Taylor <firstname.lastname@example.org>
Reviewed-by: Anita Kuno <email@example.com>
Reviewed-by: Jeremy Stanley <firstname.lastname@example.org>
Reviewed-by: Clark Boylan <email@example.com>
Approved: James E. Blair <firstname.lastname@example.org>