code: void addActionReleased(int click, EventAction action)
      {
          final Integer key = Integer.valueOf(click);
          final List<EventAction> list;
          if (actionsReleased.get(key) == null)
          {
              list = new ArrayList<>();
              actionsReleased.put(key, list);
          }
          else
          {
              list = actionsReleased.get(key);
          }
          list.add(action);
      }
docs: Add a released action.
  
  @param click The action click.
  @param action The associated action.