[winery] Async packing
Remove the strong coupling of the packing with the object writing.
It should help for error recovery and allow to move the packing process in different security context (credentials with write access to ceph needed).
Staging instance, all changes can be removed at any time
Remove the strong coupling of the packing with the object writing.
It should help for error recovery and allow to move the packing process in different security context (credentials with write access to ceph needed).