Add "abort with success" option on the bitrise.io web app

Description of the feature request

There is an cancel/abort with success feature: Triggering and aborting builds - Bitrise Docs
However, it is available only via the REST API. It will be great to have it also on the web.

Use case / for what or how I would use it

Advanced workflows like achieving the selective builds feature for repos hosted on provider other than GitHub.