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/bucket-lifecycle.go

@@ -21,7 +21,6 @@ import (
 )
 
 const (
-
 	// Disabled means the lifecycle rule is inactive
 	Disabled = "Disabled"
 )