Create Docker image for StatsD
Create Docker image for StatsD

The purpose of this change is to build Docker image for StatsD.
Building Docker image for StatsD is moved to Monasca-Agent.

Change-Id: Ic134eed058fbc21f3e91029c0049d99762a1bdc3
Story: 2001694
Task: 36259

stackforge/monasca-common,stackforge/monasca-common,openstack/monasca-common,stackforge/monasca-common,openstack/monasca-common,openstack/monasca-common