Neutron LBaaS: Pools Client

* client for CRUD of pools
* includes metatests for json/xml de/serialization

Change-Id: I040c8ad428196eaa2c2bef58f5b8d7b867c9dae9
Neutron LBaaS: Initialize Behaviors directories

* folder structure with init files for behaviors
* both in api and metatests folders

Change-Id: Ia0484da79ac8f59cc04853aff695841734de2387
Merge "Neutron LBaaS: Pools Client"
Merge "Neutron LBaaS: Initialize Behaviors directories"