Add Henry Sun to contributor list
Add Henry Sun to contributor list

Change-Id: Idc8775aa79c31cec2d208ceca7ae37dcb9a777bb

openstack/stackalytics,0xf2/stackalytics,stackforge/stackalytics,openstack/stackalytics,stackforge/stackalytics,0xf2/stackalytics,Mirantis/stackalytics,0xf2/stackalytics,stackforge/stackalytics,Mirantis/stackalytics,openstack/stackalytics,0xf2/stackalytics,openstack/stackalytics,Mirantis/stackalytics