Battleship game to demonstrate debugging.

Check out the YouTube video for full details. 👇

Run the main method inside BattleshipGame to initiate these steps:

1. Setup a square board with one battleship
2. Create a player
3. Play the game until the ship is sunk or player runs out of turns

The battleship location is revealed at the end.

Use IntelliJ IDEA debug to solve these issues:

1. Why does the board only add horizontal but not vertical battleships?
2. Why do we never get message Ship sunk! when log output shows 3 direct hits?
3. Why do we sometimes see java.lang.ArrayIndexOutOfBoundsException?