Don't use JsonBuffer to create or parse objects and arrays.

* Added DynamicJsonArray and StaticJsonArray
* Added DynamicJsonObject and StaticJsonObject
* Added DynamicJsonVariant and StaticJsonVariant
* Added deserializeJson()
* Removed JsonBuffer::parseArray(), parseObject() and parse()
* Removed JsonBuffer::createArray() and createObject()

src/ArduinoJson/Data/List.hpp

@@ -27,7 +27,7 @@ class List {
   // When buffer is NULL, the List is not able to grow and success() returns
   // false. This is used to identify bad memory allocations and parsing
   // failures.
-  explicit List(JsonBuffer *buffer) : _buffer(buffer), _firstNode(NULL) {}
+  explicit List(JsonBuffer *buf) : _buffer(buf), _firstNode(NULL) {}
 
   // Returns true if the object is valid
   // Would return false in the following situation:
@@ -84,11 +84,15 @@ class List {
     }
   }
 
+  JsonBuffer &buffer() const {
+    return *_buffer;
+  }
+
  protected:
   JsonBuffer *_buffer;
 
  private:
   node_type *_firstNode;
 };
-}
-}
+}  // namespace Internals
+}  // namespace ArduinoJson