implemented displaying chess board and pieces with temp assets

assets/temp_assets/Piece_move.png

assets/temp_assets/Piece_move.png.import

assets/temp_assets/black_bishop.png

assets/temp_assets/black_bishop.png.import

assets/temp_assets/black_king.png

assets/temp_assets/black_king.png.import

assets/temp_assets/black_knight.png

assets/temp_assets/black_knight.png.import

assets/temp_assets/black_pawn.png

assets/temp_assets/black_pawn.png.import

assets/temp_assets/black_queen.png

assets/temp_assets/black_queen.png.import

assets/temp_assets/black_rook.png

assets/temp_assets/black_rook.png.import

assets/temp_assets/temp_chess_board.png

assets/temp_assets/temp_chess_board.png.import

assets/temp_assets/turn-black.png

assets/temp_assets/turn-black.png.import

assets/temp_assets/turn-white.png

assets/temp_assets/turn-white.png.import