* [AKS] Support creating Windows server container in AKS (#11403)

* support using windows container to create AKS

* upload to signed AKS sdk

* update onlineversion for help of new cmdlets

* add missing dll in psd1

* disable test parallelization in Aks.Test

* update ContainerService SDK

* fix Start-AzAksDashboard and update help files

* update to official nuget package for containerservice