add user liuhoupeng to default_data.json
add user liuhoupeng to default_data.json

Change-Id: Ic5aa42c5eeb639d9f54b1bde43921c8ff7abc3be

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