EX-6249 csdc: set compress component for file

EX-6249 csdc: set compress component for file

* 'lfs setstripe' to support compress component

  --compress|-Z <type>[:<level>]
  Set component compression algorithm <type> and compress <level>;

  --compress-chunk=<size>
  Set compress data chunk size in KiB used by the compression
  algorithm, the value will be adjusted to power-of-two multiples of
  the base 64KiB.

  Example:
	$ lfs setstripe -Eeof -Z lz4:5 --compress-chunk=512 <file>

* 'lfs getstripe' to show compress component parameters
  Display component's compression parameters if possible.

  --compress-type|--compr-type
  Print only the compress type if possible.

  --compress-level|--compr-level
  Print only the compress level if possible.

  --compress-chunk|--compr-chunk
  Print only the compress chunk size in KiB if possible.

  Example:
	$ lfs getstripe <file>
    lcme_compr_type:     lz4
    lcme_compr_lvl:      5
    lcme_compr_chunk_kb: 512
      lmm_pattern:       raid0,compress

Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: Ife0382469cbc5099e0c6dc96534bb169ddeff61e
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/49509
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>