[Add] Admin Setting for Daily Backup and easy Restore

[manakill]

As we all know, backups come in handy when we are facing an issue and need to get it working again fast. There should be a setting that allows Daily Backups of all the files and dump a .tar or .zip

Currently we are doing Drive Clone manually, on the microsd card, and that means downtime and irregularity in backups. Having a good Docker Container paired with a 3rd Party Backup option could work too but we don't have a Docker of Restya running yet at this point. Ideally we will, as Docker Containers have some benefits compared to running on bare metal RPi

There should also be a Restore feature in Admin Settings, that will accept the .tar or .zip - and restore everything automatically(users, boards, images, settings, files).

This should also work for importing the .tar or .zip into a Docker Container instance of Restyaboard, making migration easy, and offering Maximum Compatibility and Flexibility for the Users

[sridhar391]

@manakill Thanks for your suggestion and we will internally discuss with in the team