code: public static List<ComputerPanelBox> all(Computer computer) {
          List<ComputerPanelBox> boxs = new ArrayList<>();
          for(ComputerPanelBox box:  ExtensionList.lookup(ComputerPanelBox.class)){
              box.setComputer(computer);
              boxs.add(box);
          }
          return boxs;
      }
docs: Create boxes for the given computer in its page.
  
  @param computer
  The computer for which displays the boxes. Never null.
  @return
  List of all the registered {@link ComputerPanelBox}s.