Added pester test for Get-RunspaceDebug

src/pester-tests/Get-RunspaceDebug.Tests.ps1

@@ -0,0 +1,9 @@
+Describe "Get-RunspaceDebug" {
+
+    Context "Check return types of RunspaceDebug" {
+
+        It "Should return Microsoft.Powershell.Commands.PSRunspaceDebug as the return type" {
+            (Get-RunspaceDebug).GetType() | Should Be Microsoft.Powershell.Commands.PSRunspaceDebug
+        }    
+    }
+}