Automatic merge from submit-queue

Add a docker-shim package

Add a new docker integration with kubelet using the new runtime API.
This change adds the package with the skeleton and implements some of the basic operations.


This PR only implements a small sets of functions. The rest of the functions will be implemented
in the followup PRs to keep the changes readable, and the reviewers sane.

Note: The first commit is from #28396, only the second commit is for review. 

/cc @kubernetes/sig-node @feiskyer @Random-Liu