Add question to waiver that can make other questions visible

[pjames27]

• Add the question "Are you an international student?" to the waiver, which can have either "Yes" or "No" as possible inputs.
• The question should default to neither answer being selected.
• While "Yes" is selected, additional questions should be visible right after the first question.
  • If you need an example such question for testing, you can add "How much medical evacuation coverage to your home country do you have?" with a numerical input.