declared publishSyncSignal publishAsyncSignal as public slots to fix test org_commontk_eventadminTests

Plugins/org.commontk.eventadmin/dispatch/ctkEASignalPublisher_p.h

@@ -40,6 +40,8 @@ public:
   QString getSignalName() const;
   QString getTopicName() const;
 
+public slots:
+
   void publishSyncSignal(const ctkDictionary& eventProps);
   void publishAsyncSignal(const ctkDictionary& eventProps);