started work on loading pieces onto board

PythonChess/src/Display/Display.py

PythonChess/src/Display/assets/black_bishop.png

PythonChess/src/Display/assets/black_horse.png

PythonChess/src/Display/assets/black_king.png

PythonChess/src/Display/assets/black_pawn.png

PythonChess/src/Display/assets/black_queen.png

PythonChess/src/Display/assets/black_rook.png

PythonChess/src/Display/assets/white_bishop.png

PythonChess/src/Display/assets/white_horse.png

PythonChess/src/Display/assets/white_king.png

PythonChess/src/Display/assets/white_pawn.png

PythonChess/src/Display/assets/white_queen.png

PythonChess/src/Display/assets/white_rook.png