CBQE-0: adding Makefile to compile ep-engine tests

Change-Id: Idb0a5630c3f3edc0eca54d95d7d73e1c93429b2b
Reviewed-on: http://review.couchbase.org/44000
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>