Added RawJson() to insert pregenerated JSON portions (issue #259)

include/ArduinoJson/Internals/Unparsed.hpp

@@ -1,21 +0,0 @@
-// Copyright Benoit Blanchon 2014-2016
-// MIT License
-//
-// Arduino JSON library
-// https://github.com/bblanchon/ArduinoJson
-// If you like this project, please add a star!
-
-#pragma once
-
-namespace ArduinoJson {
-namespace Internals {
-class Unparsed {
- public:
-  explicit Unparsed(const char* str) : _str(str) {}
-  operator const char*() const { return _str; }
-
- private:
-  const char* _str;
-};
-}
-}