storage: add selective copying and deleting objects during sync
storage: add selective copying and deleting objects during sync

dm0-/mantle,marineam/mantle,marineam/mantle,mjg59/mantle,quantum/coreos-mantle,glevand/coreos--mantle,quantum/coreos-mantle,mjg59/mantle,glevand/coreos--mantle,dm0-/mantle