Add snapshot test suite for update
Add snapshot test suite for update

Signed-off-by: Derek McGowan <e1c79a582b6629e6b39e9679f4bb964d25db4aa8@mcgstyle.net>

miaoyq/containerd,kunalkushwaha/containerd,miaoyq/containerd,thaJeztah/containerd,vdemeester/containerd,dmcgowan/containerd,estesp/containerd,crosbymichael/containerd,kunalkushwaha/containerd,dmcgowan/containerd,thaJeztah/containerd,rajasec/containerd,mikebrow/containerd,estesp/containerd,mikebrow/containerd,vdemeester/containerd,containerd/containerd,crosbymichael/containerd,containerd/containerd,AkihiroSuda/containerd