EX-2659 tests: add sanity-lipe.sh to test LiPE utilities

EX-2659 tests: add sanity-lipe.sh to test LiPE utilities

This patch adds sanity-lipe.sh test script to test
lipe_find and lipe_scan utilities for LiPE.

Lustre-change: https://review.whamcloud.com/42151
Lustre-commit: 5d67c987c8d2dc393b1e0952fe01d33978efdea0

Test-Parameters: trivial testlist=sanity-lipe

Change-Id: I69d82f7e3675becb4e38915ff363e853d0accb77
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/43536
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>