Make addChangeListener(ValueChangeListener) a default method

Author: ZeroMemes

src/main/java/clientapi/value/IValue.java

@@ -54,7 +54,9 @@ public interface IValue<T> extends Nameable, Describable, Identifiable, IValueHo
      *
      * @param listener The change listener
      */
-    void addChangeListener(ValueChangeListener<T> listener);
+    default void addChangeListener(ValueChangeListener<T> listener) {
+        this.addChangeListener(EventState.PRE, listener);
+    }
 
     /**
      * Adds a change listener to this value

src/main/java/clientapi/value/Value.java

@@ -137,11 +137,6 @@ public void setValue(T value) {
         this.valueChangeListeners.get(EventState.POST).forEach(listener -> listener.onValueChanged(this, oldValue, value));
     }
 
-    @Override
-    public void addChangeListener(ValueChangeListener<T> listener) {
-        this.addChangeListener(EventState.PRE, listener);
-    }
-
     @Override
     public void addChangeListener(EventState state, ValueChangeListener<T> listener) {
         this.valueChangeListeners.get(state).add(listener);