LU-7174 build: add build by products to .gitignore

LU-7174 build: add build by products to .gitignore

While testing patches other non-patch related build
by products show up with git status. To avoid adding
these by accident place thes by product files in the
proper .gitignore files.

Change-Id: Ie2df9c2c7fd19c95e2b990d93db623826ee82c24
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/16458
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Jenkins
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>