Create service project in service domain
Create service project in service domain

When creating service users, the assumption is that the service
project lies within the service domain, so create it there.

Change-Id: I4880e789f5eaf340634ceb792397eef12a5a6b51
Closes-Bug: 1580998

openstack-dev/devstack,nawawi/openstack,Mahito/devstack,bigswitch/devstack,group-policy/devstack,bswartz/devstack,bigswitch/devstack,group-policy/devstack,richliu/devstack,noironetworks/devstack,bswartz/devstack,noironetworks/devstack,Mahito/devstack,nawawi/openstack,openstack-dev/devstack,dtroyer/devstack,richliu/devstack,dtroyer/devstack