[REFACTOR] Utalise ChessBoard class's __iter__ method
[REFACTOR] Utalise ChessBoard class's __iter__ method

Before, the method drawasciiboard had a parameter called boardlist.
This inferred that the chessboard wouldn't work if passed into the
method. Since ChessBoard has an __iter__ method the parameter has been
renamed to board so that the programmer knows that you can pass the
class straight into the method.

kmiller96/Quark-ChessEngine,kmiller96/Quark-ChessEngine,kmiller96/QuantumChessEngine