Exclude assets from backups

Backup feature can be added with options excluding and including Assets. In other words, a new dimension can be added to the Backup feature. Backup the schemas I want, backup assets, backup all, etc. Because sometimes there is a need for features that facilitate the need to move only a schema and the content belonging to that schema.

I am not so sure about that. It would be relatively straight forward to implement, but the CLI sync feature already provides that and is more flexible. The main use case of the backup is to migrate from one system to another.