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/obdinfo_other.go

@@ -30,7 +30,7 @@ import (
 
 func getLocalDiskHwOBD(ctx context.Context, r *http.Request) madmin.ServerDiskHwOBDInfo {
 	addr := r.Host
-	if globalIsDistXL {
+	if globalIsDistErasure {
 		addr = GetLocalPeer(globalEndpoints)
 	}