Automatic merge from submit-queue
CRI: Handle empty container name in dockershim.
Fixes https://github.com/kubernetes/kubernetes/issues/35924.
Dead container may have no name, we should handle this properly.
@yujuhong @bprashanth
The enum constants are not namespaced. The shorter, unspecifc names are likely
to cause naming conflicts in the future.
Also replace "SandBox" with "Sandbox" in the API.
Add a new docker integration with kubelet using the new runtime API.
This change adds the package with some skeletons, and implements some
of the basic operations.