Function appendHex

Sources/Dependencies/jsoncpp/writer.cpp:215–217

	}

	static void appendHex(StringContainer& result, unsigned ch) {
		result.append("\\u").append(toHex16Bit(ch));
	}

	static StringContainer valueToQuotedStringN(const char* value, size_t length, bool emitUTF8 = false) {
		if (value == nullptr)