Greate guest login method

src/matrix/login/GuestLoginMethod.js

@@ -0,0 +1,27 @@
+/*
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {LoginMethod} from "./LoginMethod.js";
+
+export class GuestLoginMethod extends LoginMethod {
+    constructor(options) {
+        super(options);
+    }
+
+    async login(hsApi, deviceName, log) {
+        return await hsApi.guestLogin(deviceName, {log}).response();
+    }
+}