Authenticated users can access the verification page

Problem/Motivation

Currently anonymous have to access the verification page. But this should be only for the authenticated users.

Steps to reproduce

1. Install the latest version of module on you system,
2. Then logout the and try to access the page verification page.
3. URL like: /user/{user id}/edit/twilio

Proposed resolution

Need to create twilio.permissions.yml file and create permssions for the page.

Remaining tasks

NO

User interface changes

NO

API changes

NO

Data model changes

NO