BackUp solution

[thmarx]

Implement a simple backup solution.

1. should be possible to trigger back at night
2. in default, backup should be a tar.gz
3. it should be possible to define folderns to be in the backup? Or just the content?
4. should be possible to extend, maybe the backup file should be uploaded to s3

[thmarx]

backup solution is available via module: https://github.com/CondationCMS/backup-module