[#1523] shard: Store generic storage ID in metabase

Allow to extend blobstor with more storage sub-systems. Currently
objects stored in the FSTree have empty byte slice descriptor and object
from blobovnicza tree have the same id as earlier. Each such change in
the identifier formation should be accompanied with metabase version
increase.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

pkg/local_object_storage/blobstor/common/get.go

@@ -1,14 +1,13 @@
 package common
 
 import (
-	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobovnicza"
 	objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
 )
 
 type GetPrm struct {
-	Address       oid.Address
-	BlobovniczaID *blobovnicza.ID
+	Address   oid.Address
+	StorageID []byte
 }
 
 type GetRes struct {