[Board] Refactor and implement makeMove

Piece.cpp

@@ -19,18 +19,10 @@ PieceColor Piece::color() const {
     return mColor;
 }
 
-int Piece::colorVal() const {
-    return static_cast<int>(mColor);
-}
-
 PieceType Piece::type() const {
     return mType;
 }
 
-int Piece::typeVal() const {
-    return static_cast<int>(mType);
-}
-
 std::optional<PieceType> Piece::pieceTypeFromSymbol(char symbol) {
     switch (toupper(symbol)) {
     case 'P': return PieceType::Pawn;
@@ -42,9 +34,6 @@ std::optional<PieceType> Piece::pieceTypeFromSymbol(char symbol) {
     default: return std::nullopt;
     }
 }
-Piece::Optional Piece::fromValue(unsigned int value) {
-    return Piece(valToColor(value), valToType(value));
-}
 
 bool operator==(const Piece &lhs, const Piece &rhs) {
     return lhs.color() == rhs.color() && lhs.type() == rhs.type();