Add timeout mechanism for individual commands

[walter-1]

To workaround: check REG setting first at the four script locations calling Get-NetAdapterStatistics

$AnyConnectKey = "HKLM:\SYSTEM\CurrentControlSet\Services\vpnagent"
if (-Not (Test-Path $AnyConnectKey))
{
if ($Global:noNetAdapters -ne $true) {
$file = "Get-NetAdapterStatistics.txt"
[String []] $cmds = "Get-NetAdapterStatistics -IncludeHidden | Sort-Object InterfaceDescription | Format-Table -Autosize | Out-String -Width $columns",
"Get-NetAdapterStatistics -IncludeHidden | Sort-Object InterfaceDescription | Format-Table -Property * -Autosize | Out-String -Width $columns"
ExecCommandsAsync -OutDir $dir -File $file -Commands $cmds
}
}

[tmolenh]

We probably need some timeout mechanism to prevent this and similar issues.

[walter-1]

Info on root cause: the related LTE OS bug is here:
https://microsoft.visualstudio.com/DefaultCollection/OS/_workitems/edit/27692990
Get-NetAdapterStatistics cmdlet causes infinite loop in WmiPrvSE.exe if the device has LTE (Wwan) modem.

[tmolenh]

Fixed, but with a global timeout instead: #61