Workaround for resource group permissions problems

[dr-kd]

I have a problem where network connections span resource groups for which I lack sufficient permissions to interrogate. I use the following patch as a workaround:

diff --git a/AzViz/src/private/ConvertTo-DOTLangauge.ps1 b/AzViz/src/private/ConvertTo-DOTLangauge.ps1
index 36fd35b..c406450 100644
--- a/AzViz/src/private/ConvertTo-DOTLangauge.ps1
+++ b/AzViz/src/private/ConvertTo-DOTLangauge.ps1
@@ -47,7 +47,12 @@ function ConvertTo-DOTLanguage {
             $Counter = $Counter + 1              
             Write-CustomHost "Plotting sub-graph for $($Target.Type): `"$($Target.Name)`"" -Indentation 1 -color Green -AddTime
 
-            $VNets = Get-AzVirtualNetwork -ResourceGroupName $Target.Name -Verbose:$false
+            try {
+                $VNets = Get-AzVirtualNetwork -ResourceGroupName $Target.Name -Verbose:$false
+            }
+            catch {
+                $VNets = $false
+            }
             $NetworkLayout = @()
             if ($VNets) {