Allow setting a custom path for temporary data (like stats and cache)

[Cyberbeni]

I periodically create backups of my docker setup. Logs being located in a different folder is perfect for excluding them from a backup. (I use .nosync suffix for these folders, so I don't need to change my backup script what to include/exclude) I noticed that the "config" directory contains stuff, like cache.bin and stats. I think it would be useful (both for size and last modified timestamp) if temporary data that is not essential for restoring a backup could be moved to a different folder, like logs.

[ShreyasZare]

Thanks for the suggestion. I would suggest that you update the backup script since that would be much easier to achieve this custom requirement. Making such a change would involve a lot more work to ensure that existing installations do not break and additional issues with new installations.