Default imagePullPolicy to Never
Default imagePullPolicy to Never

Since we have not released this image yet, and the only way to run it is by
building it locally yourself, lets default to not trying to pull the image
and assume it's been built locally.

Signed-off-by: Kyle Mestery <9cfbda34e625c7b0454bcb19a48d07c46f9097d2@mestery.com>

networkservicemesh/networkservicemesh,networkservicemesh/networkservicemesh,networkservicemesh/networkservicemesh,networkservicemesh/networkservicemesh