[cpp rest-sdk] Reponse headers handler (#1511)

* Add support to set a Response headers handler
* Update PetStore
* Fix missing names
* Update PetStore

samples/client/petstore/cpp-restsdk/ApiClient.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.3.3-SNAPSHOT.
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.3.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -26,6 +26,7 @@
 
 #include <memory>
 #include <vector>
+#include <functional>
 
 #include <cpprest/details/basic_types.h>
 #include <cpprest/http_client.h>
@@ -43,6 +44,11 @@ public:
     ApiClient( std::shared_ptr<ApiConfiguration> configuration = nullptr );
     virtual ~ApiClient();
 
+    typedef std::function<void(const web::http::http_headers&)> ResponseHeadersHandlerType;
+
+    const ResponseHeadersHandlerType& getResponseHeadersHandler() const;
+    void setResponseHeadersHandler(const ResponseHeadersHandlerType& responseHeadersHandler);
+
     std::shared_ptr<ApiConfiguration> getConfiguration() const;
     void setConfiguration(std::shared_ptr<ApiConfiguration> configuration);
 
@@ -68,6 +74,7 @@ public:
 
 protected:
 
+    ResponseHeadersHandlerType m_ResponseHeadersHandler;
     std::shared_ptr<ApiConfiguration> m_Configuration;
 };