Create LoginMethod for password login

Signed-off-by: RMidhunSuresh <rmidhunsuresh@gmail.com>

src/matrix/LoginMethod.js

@@ -0,0 +1,10 @@
+export class LoginMethod {
+    constructor({homeServer, platform}) {
+        this.homeServer = homeServer;
+        this._platform = platform;
+    }
+
+    async login(hsApi, deviceName) {
+        throw("Not Implemented");
+    }
+}

src/matrix/PasswordLoginMethod.js

@@ -0,0 +1,15 @@
+import { LoginMethod } from "./LoginMethod.js";
+
+export class PasswordLoginMethod extends LoginMethod {
+    constructor(options) {
+        super(options);
+        this.username = options.username;
+        this.password = options.password;
+    }
+
+    async login(hsApi, deviceName) {
+        return this._platform.logger.run("passwordLogin", async log => 
+            await hsApi.passwordLogin(this.username, this.password, deviceName, {log}).response()
+        );
+    }
+}