LU-5030 utils: migrate most lustre utils to use cfs_get_paths()

LU-5030 utils: migrate most lustre utils to use cfs_get_paths()

Move all the lustre test applications and utilities
except for the code to handle lctl [s|get]_param
to use cfs_get_paths() instead of accessing the
proc file system directly. This automatically
enables support for sysfs used in the upstream
client.

Change-Id: Iecb4a269c00ac8a5e0633d69d0370e9881ee6e33
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Signed-off-by: Wang Chao <chao.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/17462
Tested-by: Jenkins
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>