Ensure the manifest which gets created using the Docker
compatibility code compresses the blob before creating
the manifest. This ensures consistency with manifests
used by Docker.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Using the cri utility caused other project to have
containerd/cri as a dependency, only for this utility.
The new `reference.ParseDockerRef` function does the
same (other than having a different name).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
