Changed DNS naming to use UUID

Libraries/Azure.psm1

@@ -814,8 +814,8 @@ $singleIndent = ""
 $indents += $indent
 $RGRandomNumber = $((Get-Random -Maximum 999999 -Minimum 100000))
 $RGrandomWord = ([System.IO.Path]::GetRandomFileName() -replace '[^a-z]')
-$dnsNameForPublicIP = $($RGName.ToLower() -replace '[^a-z0-9]') + "$randomNum"
-$dnsNameForPublicIPv6 = $($RGName.ToLower() -replace '[^a-z0-9]') + "v6" + "$randomNum"
+$dnsNameForPublicIP = [guid]::NewGuid().Guid
+$dnsNameForPublicIPv6 = [guid]::NewGuid().Guid
 #$virtualNetworkName = $($RGName.ToUpper() -replace '[^a-z]') + "VNET"
 $virtualNetworkName = "VirtualNetwork"
 $defaultSubnetName = "SubnetForPrimaryNIC"