Image pull should come from Microsoft repository

[angellmethod]

Image pulls for Microsoft owned libraries should come from Microsoft or other official container repositories.

generator-azure-iot-edge-module/app/templates/Dockerfile.windows-amd64.debug

Line 1 in 6f25954

FROM stefanscherer/node-windows:8-nanoserver

[LazarusX]

As far as we know, https://hub.docker.com/r/stefanscherer/node-windows/ is the only maintained Node.js image for Windows container. The pull requests to add it to the official Node.js repositories: nodejs/docker-node#362, nodejs/docker-node#720 are still pending merge. We will update the Docker files once these changes are released.

[angellmethod]

Got it - thanks for following up!