Enhancement: Artifact should offer a way to get the a URL and/or download the file

The Artifact class does not offer a #getUrl() method (just as JobWithDetails/BuildWithDetails). IMHO it would be a valuable feature to get the URL of the artifact to for further processing or allow a direct download.
I know there is "buildWithDetails#downloadArtifact(Artifact a)" but that offers only an InputStream and furthermore the build(WithDetails) is not always available (and there is no artifact.getBuild() - see #339)

Start by reading Artifact, JobWithDetails, BuildWithDetails, and the existing buildWithDetails#downloadArtifact(Artifact a) API. Compare how artifact access works when a BuildWithDetails instance is unavailable, and review issue #339 for related context. Done means the supported artifact URL and/or download behavior is defined and exposed consistently, with coverage for the chosen API.

Escrito por el modelo de indexación a partir del texto del issue.