Add more desciptive error messages when creating a CEC genericComm device

Resolves #355

essentials-framework/Essentials Core/PepperDashEssentialsBase/Comm and IR/CommFactory.cs

@@ -119,19 +119,36 @@ namespace PepperDash.Essentials.Core
 
             if (dev != null)
             {
+                if (!String.IsNullOrEmpty(config.ControlPortName))
+                {
+
                     var inputPort = (dev as IRoutingInputsOutputs).InputPorts[config.ControlPortName];
 
                     if (inputPort != null)
+                    {
                         if (inputPort.Port is ICec)
                             return inputPort.Port as ICec;
+                    }
 
                     var outputPort = (dev as IRoutingInputsOutputs).OutputPorts[config.ControlPortName];
 
                     if (outputPort != null)
+                    {
                         if (outputPort.Port is ICec)
                             return outputPort.Port as ICec;
                     }
-            Debug.Console(0, "GetCecPort: Device '{0}' does not have a CEC port called: '{1}'", config.ControlPortDevKey, config.ControlPortName);
+
+                    else
+                        Debug.Console(0, "GetCecPort: Device '{0}' does not have a CEC port called: '{1}'",
+                            config.ControlPortDevKey, config.ControlPortName);
+                }
+                else
+                {
+                    Debug.Console(0, "GetCecPort: '{0}' - Configuration missing 'ControlPortName'", config.ControlPortDevKey);
+                }
+            }
+            Debug.Console(0, "GetCecPort: Device '{0}' is not a valid device.", config.ControlPortDevKey);
+
             return null;
         }