virtcontainers: Switch the repository to read-only mode

[sboeuf]

This commit moves the original README to README-original.md in order to keep it, and modify the new README to indicate the new location of virtcontainers in github.com/kata-containers/runtime.

This also introduces a new file error_package_moved.go which prevents the package from building properly. This is done on purpose, to avoid confusion for the users of this package, forcing them to update their dependency to the right repository.

Signed-off-by: Sebastien Boeuf sebastien.boeuf@intel.com

[sboeuf]

@jodh-intel @egernst @grahamwhaley @sameo PTAL The CI for this PR won't pass since it introduces a new file which is not going to build properly. We should merge it when we get LGTM from at least 3 or 4 people from the team here.

[jodh-intel]

Thanks @sboeuf!

lgtm

[jodh-intel]

Of course, this will have to be force-merged given error_package_moved.go.

[sameo]

LGTM