Fixed the name used for the ANY event type of CalendarEvent. There se…

…em to be additional checks in newer JavaFX versions that notice that the previous name "ANY" was already used by one of the super type events.

CalendarFXView/src/main/java/com/calendarfx/model/CalendarEvent.java

@@ -48,7 +48,7 @@ public class CalendarEvent extends Event {
     /**
      * The supertype of all event types in this event class.
      */
-    public static final EventType<CalendarEvent> ANY = new EventType<>(Event.ANY, "ANY");
+    public static final EventType<CalendarEvent> ANY = new EventType<>(Event.ANY, "CALENDAR");
 
     /**
      * An event type used to inform the application that "something" inside the