Piece: expanding getLegalMoves for Queen/Knight/Bishop

inc/Board.hpp

@@ -13,6 +13,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+#include <iostream>
 
 #include "Piece.hpp"
 
@@ -32,6 +33,7 @@ public:
   std::vector<std::vector<std::unique_ptr<Piece>>> boardGrid;
   Board();
   virtual ~Board();
+  
   void setupInitialPosition();
   std::unique_ptr<Piece> &getPieceAt(Square square);
   void movePiece(Square from, Square to);