Summary:
Telephony and SMS handling are quite distinct so they should be in separate plugins for better maintainability, given that @sredman has big plans with SMS.
This diff should be fully backwards compatible, but whether we really want to do that is up to discussion
Test Plan: Only supeficially tested. Receive an SMS (old way), Notification is shown
Reviewers: #kde_connect, sredman
Reviewed By: sredman
Subscribers: albertvaka, apol, sredman, kdeconnect, #kde_connect
Tags: #kde_connect
Differential Revision: https://phabricator.kde.org/D13594
