EX-6856 utils: add 'lfs find' support for compressed file

EX-6856 utils: add 'lfs find' support for compressed file

* Add "--comp-flags=[^]compress" to locate file with/without
  compressed components.
* Add "--comp-flags=[^]nocompr" to locate file with/without setting
  component compress preference.
* Add "[!] --layout=compress" to locate file with/without compressed
  components.
* Add "[!] --compress-type=<compress-type>" to locate compressed file
  with/without specified compress algorithm.
* Add "[!] --compress-level=[+-]<compress-level>" to locate compressed
  file with/without specified compress level.
* Add "[!] --compress-chunk=[+-]<compress-chunk>" to locate compressed
  file with/without specified compress chunk in KiB.

Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: Ic36946738c3463fd862aeca4ee2e2c2ed85eff84
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/49930
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>