Support bucket versioning (#9377)

- Implement a new xl.json 2.0.0 format to support,
  this moves the entire marshaling logic to POSIX
  layer, top layer always consumes a common FileInfo
  construct which simplifies the metadata reads.
- Implement list object versions
- Migrate to siphash from crchash for new deployments
  for object placements.

Fixes #2111

cmd/lock-rest-server.go

@@ -270,10 +270,10 @@ func lockMaintenance(ctx context.Context, interval time.Duration) error {
 			}
 
 			// Read locks we assume quorum for be N/2 success
-			quorum := globalXLSetDriveCount / 2
+			quorum := globalErasureSetDriveCount / 2
 			if nlrip.lri.Writer {
 				// For write locks we need N/2+1 success
-				quorum = globalXLSetDriveCount/2 + 1
+				quorum = globalErasureSetDriveCount/2 + 1
 			}
 
 			// less than the quorum, we have locks expired.