Solution for the Tic-tac-toe excercise for the iOS Programming 2019 course.

Includes the following functionality:

• When the app is launched an empty 3x3 board (9 fields) should be visible.
• Each field in the board should be touchable
• The app shall alternate between placing “X” and “O” on the field when the user taps a field.
• The app shall be able to recognize when a user has won (or a draw) and offer to play again (resetting the game)