LU-4017 quota: add project id support

LU-4017 quota: add project id support

This patch is infrastrcuture change for Lustre project quota,
project ID is considered as file attribute like UID/GID,
MDS will return back project id to client upon open/getattr.

Extend llog_setattr64_rec_v2 to be able to store project
ID, upgrade from old format could be handled properly,
if you want to downgrade again, need to make sure llog
have been handled completely.

Change-Id: Id7d27188f22169d6cffb74ea8b792ad4b133ef1d
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Reviewed-on: https://review.whamcloud.com/25812
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Li Xi <lixi@ddn.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>