Adds Neutron Networking Support

Implements: blueprint kube-neutron-container

Previously, only the neutron-server service was functional. This
patch adds support the the rest of the neutron services need by
Nova instances to function. The linux-bridge agent is used instead
of the OVS agent to realize network abstractions. This is because
the ovs-agent package will install the kernel module version of OVS
instead of the userspace version. Additionally, the OVS
userspace code is still very experimental and reduces performance.

Requires:

https://github.com/larsks/heat-kubernetes/pull/8

Change-Id: I5ef34ddeb48d4954934571a928cc82ae7f3a0f20