Function update

Source/external/json.hpp:22578–22581

@brief updates a JSON object from another object, overwriting existing keys @sa https://json.nlohmann.me/api/basic_json/update/

	/// @brief updates a JSON object from another object, overwriting existing keys
	/// @sa https://json.nlohmann.me/api/basic_json/update/
	void update(const_reference j, bool merge_objects = false)
	{
		update(j.begin(), j.end(), merge_objects);
	}

	/// @brief updates a JSON object from another object, overwriting existing keys
	/// @sa https://json.nlohmann.me/api/basic_json/update/