Move S3 stat mapper to S3MetaOps chain
Move S3 stat mapper to S3MetaOps chain

EricKTCheung/davix,cern-it-sdc-id/davix,cern-it-sdc-id/davix,cern-it-sdc-id/davix,cern-it-sdc-id/davix,EricKTCheung/davix,EricKTCheung/davix,EricKTCheung/davix