Here we're primarily concerned with the kube-cross image, though we
may expand scope at a later time.
Adding the following reviewers/approvers:
- BenTheElder
- cblecker
- dims
- justaugustus
- listx
Once we've defined policies for handling these images, we'll expand the
scope of this group to include Release Engineering.
Signed-off-by: Stephen Augustus <saugustus@vmware.com>