rgwlc: implement NewerNoncurrentVersions

rgwlc: implement NewerNoncurrentVersions

Per AWS doc, this value controls "how many noncurrent versions
Amazon S3 will retain." [1]  We understand this to mean, retain
NewerNoncurrentVersions of any object, regardless of expiration.

Removed unused RGWLifecycleConfiguration::has_same_action() (cleanup)

[1] https://docs.aws.amazon.com/AmazonS3/latest/API/API_NoncurrentVersionExpiration.html.

Signed-off-by: Matt Benjamin <mbenjamin@redhat.com>
(cherry picked from commit a4313e77a31c5165254068b53dfac3d277b0a6a8)