Add tags to Jenkins builds or export specific builds

This idea is from @abayer, from these following tweets:

Tweet 1

And:

Tweet 2

We could simply add tags to builds, and then create some place that would list the builds (or other things) that are tagged appropriately. Or we could add a way to define whicih builds should be exported to some tool, and then via the plug-in API maybe, post to this external tool.