Merge pull request #29954 from smithfarm/wip-40597-nautilus

nautilus: rgw_file: directory enumeration can be accelerated 1-2 orders of magnitude taking stats from bucket index Part I (stats from S3/Swift only)

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

diff --cc src/common/legacy_config_opts.h
Simple merge

diff --cc src/common/options.cc
Simple merge

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