Excloude the event of sandbox containers from event stream
Excloude the event of sandbox containers from event stream

We should exclude the event of sandbox containers from event
stream in order to avoid outputting unexpected error print.

related #173

Signed-off-by: Yanqiang Miao <ab4ee3200e9057277ea29a217f2f229bb20c5345@zte.com.cn>

mikebrow/containerd,zhangzhenhao/cri-containerd,thaJeztah/containerd,estesp/containerd,w9n/cri-containerd,containerd/containerd,w9n/cri-containerd,mikebrow/containerd,zhangzhenhao/cri-containerd,mikebrow/cri-containerd,vdemeester/containerd,dmcgowan/containerd,zhangzhenhao/cri-containerd,estesp/containerd,vdemeester/containerd,mikebrow/cri-containerd,mikebrow/cri-containerd,containerd/containerd,w9n/cri-containerd,dmcgowan/containerd,thaJeztah/containerd