Added test case for HLLPP
Added test case for HLLPP

seiflotfy/counts,skizzehq/skizze,mbarkhau/counts,seiflotfy/counts,martinpinto/skizze,seiflotfy/skizze,njpatel/skizze,martinpinto/counts,mbarkhau/counts,skizzehq/skizze,njpatel/skizze