Function crend

Source/external/json.hpp:22021–22024

@brief returns a const reverse iterator to one before the first @sa https://json.nlohmann.me/api/basic_json/crend/

	/// @brief returns a const reverse iterator to one before the first
	/// @sa https://json.nlohmann.me/api/basic_json/crend/
	const_reverse_iterator crend() const noexcept
	{
		return const_reverse_iterator(cbegin());
	}

  public:
	/// @brief wrapper to access iterator member functions in range-based for