Create new class `Store`, that allow to make purchases. Use given `enum` and `functions`: ``` enum class Response {done, lack_of_money, lack_of_cargo, lack_of_space}; Response buy(Cargo* cargo, size_t amount, Player* player); Response sell(Cargo* cargo, size_t amount, Player* player); ``` https://kursy.coders.school/szkolenie.html?tid=30&lid=396