Added serializeMsgPack() and measureMsgPack() (closes #358)

src/ArduinoJson/StringStorage/StringCopier.hpp

@@ -0,0 +1,25 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+namespace ArduinoJson {
+namespace Internals {
+
+template <typename TJsonBuffer>
+class StringCopier {
+ public:
+  StringCopier(TJsonBuffer& jb) : _jb(&jb) {}
+
+  typedef typename TJsonBuffer::String String;
+
+  String startString() {
+    return _jb->startString();
+  }
+
+ private:
+  TJsonBuffer* _jb;
+};
+}  // namespace Internals
+}  // namespace ArduinoJson