PS: Add test with missing remote flow.

Author: MathiasVP

powershell/ql/test/library-tests/frameworks/microsoft_powershell/test.ps1

@@ -5,4 +5,7 @@ $xmlQuery = "/Users/User"
 $path = "C:/Users/MyData.xml"
 $xmldata = Select-Xml -Path $path -XPath $xmlQuery # $ type="file stream"
 
-$hexdata = Format-Hex -Path $path -Count 48 # $ type="file stream"
+$hexdata = Format-Hex -Path $path -Count 48 # $ type="file stream"
+
+$remote_data1 = Iwr https://example.com/install.ps1 # $ MISSING: type="remote flow source"
+$remote_data2 = Invoke-RestMethod -Uri https://blogs.msdn.microsoft.com/powershell/feed/ # $ MISSING: type="remote flow source"