message: Sort UI.h alphabetically
diff: #include "Core/Button.h"
  #include "Core/CheckBox.h"
  #include "Core/ComboBox.h"
  +#include "Core/Label.h"
  #include "Core/ListBox.h"
  +#include "Core/RadioButton.h"
  #include "Core/Slider.h"
  #include "Core/TextArea.h"
  #include "Core/TextField.h"
  #include "Core/UIContainer.h"
  #include "Core/Window.h"
  #include "Core/WindowStack.h"
  -#include "Core/Label.h"
  -#include "Core/RadioButton.h"
  