Use of the MobileClient api of gmusicapi

This API allows to get size information of any track, to simplify the download of All Access tracks and is fully supported.

Although it requires the device Id of a phone bounded to your google music account.
I've added an entry in the config file for providing this id, and an option to get this id with --deviceid


I don't know if it must be on the master branch cause it restricts to people who have an android phone with G-Music but it'll also extend the potential possibilities of your virtual file system.

Thanks for keeping this running ! ;-)