chore(http): add new package

packages/wyatt_http_client/lib/src/utils/header_keys.dart

@@ -0,0 +1,30 @@
+// 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/>.
+
+enum HeaderKeys {
+  authorization('Authorization'),
+  wwwAuthenticate('WWW-Authenticate'),
+  contentType('Content-Type');
+
+  final String name;
+
+  @override
+  String toString() {
+    return name;
+  }
+
+  const HeaderKeys(this.name);
+}