In this exercise, you will be implementing a game known as Hotter or Colder. This exercise will give you a chance to (a) practice your Swift skills such as variables, if-statements, etc (b) practice your app building skills and (c) teach you about the TextField UI object. Also, by the end of it, you will have a really fun game to play when you're bored (and show to friends and family)!

Overview

Here's how the game works.

1. The app chooses a secret number at random between 1 and 100, and the user is asked to guess it.
2. If the guess is too low, the program should display "You're too cold". If the guess is too high, it shows "You're too hot".
3. This repeats till the user guesses the secret number.
4. When this happens, the program outputs, "Congratulations, you did it!".