Create benchmark for [[likely]] performance

[uselessgoddess]

See the new attribute [[likely]]

compare (see this link)

        if (n <= MaximumFactorialNumber)
        {
            return Internal::_factorials[n];
        }
        else
        {
            throw std::out_of_range(std::string("Only numbers from 0 to ").append(std::to_string(MaximumFactorialNumber)).append("are supported by unsigned integer with 64 bits length."));
        }

And

        if (n <= MaximumFactorialNumber) [[likely]]
        {
            return Internal::_factorials[n];
        }
        else [[unlikely]]
        {
            throw std::out_of_range(std::string("Only numbers from 0 to ").append(std::to_string(MaximumFactorialNumber)).append("are supported by unsigned integer with 64 bits length."));
        }

[uselessgoddess]

See this example from godbolt