fixed Plugins Signals and Slots

.gitignore

+BioTracker/Plugin/build/
+BioTracker/Interfaces/build-BioTrackerInterfaces-BioTracker-Debug/
+BioTracker/Source/build/
 GeneratedFiles/
 CMakeLists.txt.user
 desktop.ini

BioTracker/Interfaces/BioTrackerInterfaces/Interfaces/IBioTrackerPlugin.h

 #ifndef IBIOTRACKERPLUGIN_H
 #define IBIOTRACKERPLUGIN_H
 
+#include "QObject"
+
 #include "Interfaces/IController/icontroller.h"
 #include "opencv2/core/core.hpp"
 #include "memory"
 
-class IBioTrackerPlugin
+class IBioTrackerPlugin : public QObject
 {
+    Q_OBJECT
 public:
     ~IBioTrackerPlugin() {}
 

BioTracker/Plugin/BioTrackerPlugin/BioTrackerPlugin.h

 #ifndef BIOTRACKERPLUGIN_H
 #define BIOTRACKERPLUGIN_H
 
-#include "QObject"
 #include "biotrackerplugin_global.h"
 #include "opencv2/core/core.hpp"
 #include "Interfaces/IBioTrackerContext.h"
@@ -12,7 +11,7 @@
 #include "QPointer"
 #include "memory"
 
-class BIOTRACKERPLUGINSHARED_EXPORT BioTrackerPlugin : public QObject, IBioTrackerPlugin
+class BIOTRACKERPLUGINSHARED_EXPORT BioTrackerPlugin : public IBioTrackerPlugin
 {
     Q_OBJECT
     Q_PLUGIN_METADATA(IID "de.fu-berlin.mi.biorobotics.BioTrackerPlugin" FILE "BioTrackerPlugin.json")