Merge pull request #19020 from zhangsw/feature-rgw-bucketsync-api

rgw: add admin rest api for bucket sync

Reviewed-by: Casey Bodley <cbodley@redhat.com>

diff --cc src/rgw/rgw_admin.cc
Simple merge

diff --cc src/rgw/rgw_bucket.cc
Simple merge

diff --cc src/rgw/rgw_bucket.h
Simple merge

diff --cc src/rgw/rgw_common.cc
Simple merge

diff --cc src/rgw/rgw_rest_bucket.cc
Simple merge