ClusterNetwork: Integration test is missing for this resource

[johlju]

Details of the scenario you tried and the problem that is occurring:
We should add an integration test for this resource. And make sure that integration tests are only run in AppVeyor since it evolves setting up a Active Directory Domain Controller.

if ($env:APPVEYOR -eq $true)

And provide instructions how to run the integration tests on a local lab server.

The DSC configuration that is using the resource (as detailed as possible):
n/a

Version of the Operating System and PowerShell the DSC Target Node is running:
n/a

Version of the DSC module you're using, or 'dev' if you're using current dev branch:
Dev