[C++] Adjust the names (script, sample folder, generator) to lang option (#220)

* Rename script: qt5-petstore.sh -> cpp-qt5-petstore.sh

* Rename sample folder: qt5cpp -> cpp-qt5

* Rename script: cpprest-petstore.sh -> cpp-restsdk-petstore.sh

* Rename sample folder: cpprest -> cpp-restsdk

* Rename generator: CppRestClientCodegen -> CppRestSdkClientCodegen

* Rename script: tizen-petstore.sh -> cpp-tizen-petstore.sh

* Rename sample folder: tizen -> cpp-tizen

* Rename script(security): qt5cpp-petstore.sh -> cpp-qt5-petstore.sh

* Rename sample folder(security): qt5cpp -> cpp-qt5

* Rename script(windows): qt5cpp-petstore.bat -> cpp-qt5-petstore.bat

* Change sample folder

* Rename script(windows): cpprest-petstore.bat -> cpp-restsdk-petstore.bat

* Change sample folder

* Rename script(windows): tizen-petstore.bat -> cpp-tizen-petstore.bat

* Change sample folder

* Change output folder: tizen -> cpp-tizen

* Rename the scripts under bin/openapi3

cpp-restsdk is not exist under bin/openapi3

* Change sample folder

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

@@ -0,0 +1,61 @@
+/**
+ * OpenAPI Petstore
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * OpenAPI spec version: 1.0.0
+ *
+ * NOTE: This class is auto generated by OpenAPI-Generator 3.0.0-SNAPSHOT.
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+/*
+ * ApiException.h
+ *
+ * This is the exception being thrown in case the api call was not successful
+ */
+
+#ifndef ORG_OPENAPITOOLS_CLIENT_API_ApiException_H_
+#define ORG_OPENAPITOOLS_CLIENT_API_ApiException_H_
+
+
+
+#include <memory>
+#include <map>
+
+#include <cpprest/details/basic_types.h>
+#include <cpprest/http_msg.h>
+
+
+namespace org {
+namespace openapitools {
+namespace client {
+namespace api {
+
+class  ApiException
+    : public web::http::http_exception
+{
+public:
+    ApiException( int errorCode
+        , const utility::string_t& message
+        , std::shared_ptr<std::istream> content = nullptr );
+    ApiException( int errorCode
+        , const utility::string_t& message
+        , std::map<utility::string_t, utility::string_t>& headers
+        , std::shared_ptr<std::istream> content = nullptr );
+    virtual ~ApiException();
+
+    std::map<utility::string_t, utility::string_t>& getHeaders();
+    std::shared_ptr<std::istream> getContent() const;
+
+protected:
+    std::shared_ptr<std::istream> m_Content;
+    std::map<utility::string_t, utility::string_t> m_Headers;
+};
+
+}
+}
+}
+}
+
+#endif /* ORG_OPENAPITOOLS_CLIENT_API_ApiBase_H_ */