Removed Threading in ExecutionTimeSubject because of JavaFX Thread problem

src/main/java/fabrik/simulator/pic16f84/EEPROM.java

@@ -174,6 +174,7 @@ public class EEPROM extends PICComponent implements EEPROMInterface, ExecutionTi
     @Override
     public void initialize(PICComponentLocator locator) {
         super.initialize(locator);
+        executionTime.registerObserver(this);
     }
 
     @Override