LU-5155 scripts: added lustre/scripts/zfsobj2fid

LU-5155 scripts: added lustre/scripts/zfsobj2fid

The zfsobj2fid script converts ZFS object xattr FID to
standard Lustre FID format so it can be used with Lustre
tools like "lfs fid2path".

Change-Id: Id87ff0533a5431a292bca24a76815642f4318083
Signed-off-by: Isaac Huang <he.huang@intel.com>
Reviewed-on: http://review.whamcloud.com/13721
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Christopher J. Morrone <morrone2@llnl.gov>
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>