EX-9459 lipe: Fix behavior when getting attributes

EX-9459 lipe: Fix behavior when getting attributes

This improvement is important and is intended for the
--collect-fsize-stats output policy in lipe_scan3.

This patch prevents the scanning process from stopping and
completing if any LOV attribute is not received correctly.
Instead of halting the scan, the patch adds additional error
counters, and all types of reports will now include new
error statistics.

Also add a counters for objects that have no size/allocate size.

An example of a new block with error information from a report
with the .out extension which will contain the following fields:

Error counters:
Allocated blocks is empty: 11101
Size is empty: 0
Without size (all size value empty): 59
Failed to get LOV attr: 0
Failed to get mirror count: 0
Failed to get stripe count: 0
Failed to get stripe size: 0

Test-Parameters: trivial testlist=sanity-lipe-scan3,sanity-lipe-find3
Signed-off-by: Vitaliy Kuznetsov <vkuznetsov@ddn.com>
Change-Id: I1817ea189f3d554894822ad8d12a8514546b13b0
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/54583
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Alexandre Ioffe <aioffe@ddn.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>