CBQE-1484: add reports check for cbhealthchecker

Change-Id: I351154195456790b4fc9939bd44f48ada16bdcc3
Reviewed-on: http://review.couchbase.org/29377
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>