Minor Edit: Displays board using 2-D Array

Using a 2-D array, the program can now display the chessboard. By
default, it displays white pieces at the bottom. This is initialized at
the start of the program.

I wrote a function that is able to flip the board for both players so
that they can view the board from their perspective.

Very minor edit: I wrote a title heading to greet players when they
first enter the program.