Test suite: added HKEYS, HVALS, HGETALL.
Test suite: added HKEYS, HVALS, HGETALL.

quangnguyen90/predis,moria/predis,zhangyancoder/predis,lvbaosong/predis,SwelenFrance/predis,nrk/predis,dzung2t/predis,protomouse/predis,vend/predis,CloudSide/predis,oswaldderiemaecker/predis,RedisLabs/predis,gopalindians/predis,RudyJessop/predis,stokes3452/predis,channelgrabber/predis,gencer/predis,WalterShe/predis,mrkeng/predis,SecureCloud-biz/predis,nguyenthaihan/predis,dominics/predis,johnhelmuth/predis