message: Rename type ValueChangedCallback to ValueChangeCallback
diff: @@ -37,7 +37,7 @@ public:
  NAS2D::RectangleSkin skinSlider;
  };
  - using ValueChangedCallback = NAS2D::Signal<float>; /*!< type for Callback on value changed. */
  + using ValueChangeCallback = NAS2D::Signal<float>; /*!< type for Callback on value changed. */
  Slider(SliderType sliderType = SliderType::Vertical);
  Slider(Skins skins, SliderType sliderType = SliderType::Vertical);
  @@ -61,7 +61,7 @@ public:
  void update() override; /*!< Called to display the slider. */
  - ValueChangedCallback& change() { return mCallback; } /*!< Give the callback to enable another control or a window to dis/connect to this event call. */
  + ValueChangeCallback& change() { return mCallback; } /*!< Give the callback to enable another control or a window to dis/connect to this event call. */
  protected:
  virtual void onMouseDown(NAS2D::EventHandler::MouseButton button, int x, int y); /*!< Event raised on mouse button down. */
  @@ -81,7 +81,7 @@ private:
  NAS2D::Timer mTimer;
  - ValueChangedCallback mCallback; /*!< Callback executed when the value is changed. */
  + ValueChangeCallback mCallback; /*!< Callback executed when the value is changed. */
  SliderType mSliderType{SliderType::Vertical}; /*!< Type of the Slider. */
  