Update Install-RSATv1809v1903v1909v2004v20H2.ps1 - add check is wuauserv is running

[wishbonesr]

Suggesting to add a check if the wuauserv service is running.
It is not running by default in my org.
Get status around line 155 $wuSvsStatus = (get-service suauserv).Status
Before issuing cmdlet Restart-Service, check if $wuSvsStatusis -eq "Running"
Else Start-Service suauserv

And then in the finalizing of each parameter option, in the same place as the reset of the registry entry ("UseWuServer"), return the service it to it's original state. Running if running, and stopped if stopped.