Extracted StringReader and StringWriter from JsonParser

Split `Internals/` folder into `Data/`, `Deserialization/`, `Serialization/`

include/ArduinoJson/Data/JsonBufferAllocated.hpp

@@ -0,0 +1,25 @@
+// 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
+
+#include "../JsonBuffer.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+class JsonBufferAllocated {
+ public:
+  void *operator new(size_t n, JsonBuffer *jsonBuffer) throw() {
+    if (!jsonBuffer) return NULL;
+    return jsonBuffer->alloc(n);
+  }
+
+  void operator delete(void *, JsonBuffer *) throw() {}
+};
+}
+}