Register ENUMs in ISimulator like it is done in IVoice

src/blackcore/voice.cpp

@@ -8,11 +8,11 @@
 namespace BlackCore
 {
     IVoice::IVoice(QObject *parent) : QObject(parent)
-    {
-    }
+    { }
 
     void IVoice::registerMetadata()
     {
+        // for some reasons (ask RW) this is registered twice
         qRegisterMetaType<ComUnit>();
         qRegisterMetaType<ComUnit>("ComUnit");
         qRegisterMetaType<ConnectionStatus>();