/// <summary>
 /// Constructor for creating memento object with IFigure matrix and figures positions on board
 /// </summary>
 /// <param name="board">The board that we want to save</param>
 /// <param name="figurePositionsOnBoard">All the figure positions from the board</param>
 public BoardMemento(IFigure[,] board, Dictionary<string, IPosition> figurePositionsOnBoard)
 {
     this.board = new IFigure[board.GetLength(0), board.GetLength(1)];
     this.Board = board;
     this.FigurePositionsOnBoard = figurePositionsOnBoard;
 }