Add support for using Google test framework
Add support for using Google test framework

Change-Id: I41a0985ffb11119b83092e6b3d10df4c61502b03
Reviewed-on: http://review.couchbase.org/15443
Tested-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>
Reviewed-by: Chiyoung Seo <8b279095f11c26cc21045fda5a3e51debb005aa9@gmail.com>

teligent-ru/ep-engine,jimwwalker/ep-engine,sriganes/ep-engine,sriganes/ep-engine,membase/ep-engine,hisundar/ep-engine,sriganes/ep-engine,owendCB/ep-engine,daverigby/kv_engine,membase/ep-engine,daverigby/ep-engine,couchbase/ep-engine,owendCB/ep-engine,daverigby/ep-engine,owendCB/ep-engine,teligent-ru/ep-engine,couchbase/ep-engine,abhinavdangeti/ep-engine,jimwwalker/ep-engine,jimwwalker/ep-engine,hisundar/ep-engine,daverigby/ep-engine,daverigby/kv_engine,couchbase/ep-engine,sriganes/ep-engine,membase/ep-engine,abhinavdangeti/ep-engine,membase/ep-engine,daverigby/ep-engine,abhinavdangeti/ep-engine,hisundar/ep-engine,teligent-ru/ep-engine,owendCB/ep-engine,couchbase/ep-engine,daverigby/kv_engine,hisundar/ep-engine,daverigby/kv_engine,jimwwalker/ep-engine,teligent-ru/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine