feat(http): [WIP] implements middleware system

packages/wyatt_http_client/lib/src/models/middleware_response.dart

@@ -0,0 +1,37 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+// Copyright (C) 2022 WYATT GROUP
+// Please see the AUTHORS file for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import 'package:http/http.dart';
+
+class MiddlewareResponse {
+  BaseResponse httpResponse;
+  
+  MiddlewareResponse({
+    required this.httpResponse,
+  });
+
+  MiddlewareResponse copyWith({
+    BaseResponse? httpResponse,
+  }) {
+    return MiddlewareResponse(
+      httpResponse: httpResponse ?? this.httpResponse,
+    );
+  }
+
+  @override
+  String toString() => 'MiddlewareResponse(httpResponse: $httpResponse)';
+}