[js][ios][android][auth] confirmPasswordReset implemented

lib/modules/auth/index.js

@@ -153,6 +153,19 @@ export default class Auth extends Base {
     return FirebaseAuth.sendPasswordResetEmail(email);
   }
 
+  /**
+   * Completes the password reset process, given a confirmation code and new password.
+   *
+   * @link https://firebase.google.com/docs/reference/js/firebase.auth.Auth#confirmPasswordReset
+   * @param code
+   * @param newPassword
+   * @return {Promise.<Null>}
+   */
+  confirmPasswordReset(code: string, newPassword: string): Promise<Null> {
+    return FirebaseAuth.confirmPasswordReset(code, newPassword);
+  }
+
+
   /**
    * Get the currently signed in user
    * @return {Promise}