Dialog containing command links.

Command links are similar to radio buttons. They are used to select from a set of mutually exclusive, related choices.
Like radio buttons, command links are always presented in sets, never individually.
Usage example:

1. Create a list of command link buttons that represent the different choices:

   CommandLinksButtonType restartLink = new CommandLinksButtonType("Restart the program", false);
   CommandLinksButtonType closeLink = new CommandLinksButtonType("Close the program", false);
   CommandLinksButtonType waitLink = new CommandLinksButtonType("Wait for the program to respond",
   "This is the default option", true);
   List<CommandLinksButtonType> links = Arrays.asList(restartLink, closeLink, waitLink);

2. Initialize the dialog with the list of command link buttons:

   CommandLinksDialog dialog = new CommandLinksDialog(links);

3. Add dialog title and header content text as appropriate:

   dialog.setTitle("Microsoft Windows");
   dialog.getDialogPane().setContentText("Windows Explorer is not responding");