Enable benchmarking of the Neutron LoadBalancer v1 pool-create and pool-list APIs. Due to the different API scheme and confusing naming conventions in Neutron (LB is v1 API and LBaaS for v2 API) the appropriate code is explicitly marked with 'v1' since this only implements the API v1 benchmarking. Change-Id: If51f6286be49724c0bc4ae343815704f01153e97