LU-4017 e2fsprogs: add project quota support

LU-4017 e2fsprogs: add project quota support

Adds project ID support for ext4, this patch implement
it by adding a new internal field of ext4 inode to save
project identifier.

Project inode number is allocated dynamically, to fix
compatibility, project feature is disabled in default.

If users want to use project quota, they can do it by:

mkfs.ext4 -O quota,project <dev>

or enable project later by:

tune2fs -O project <dev>
tune2fs -Q prjquota <dev>

Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Change-Id: I2497c56802f0ab155b16908012a2e83beb70f9cd
Reviewed-on: http://review.whamcloud.com/15762
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>