Add the ability to have multiple releasenote or release-note blocks
within a single PR, each generating their own ReleaseNote struct.
Also, add a Type field to the ReleaseNote struct, and let blocks have a
type embedded in them, like ```release-note:bug, which is then exposed
to templates via the Type field.
Add the ability to have multiple releasenote or release-note blocks within a single PR, each generating their own ReleaseNote struct.
Also, add a Type field to the ReleaseNote struct, and let blocks have a type embedded in them, like ```release-note:bug, which is then exposed to templates via the Type field.