Store information about the provenance asset

[behnazh-w]

With this PR, we have more accurate provenance discovery and support various places that provenances may get stored, including GitHub release assets. With this refactoring, the information about the the provenance, such as the name and asset URL is not retained, however.

We need to refactor the AnalyzeContext.dynamic_data["provenance"] to retain the information related to the provenance.