Adds Neutron Server Support

Previously Kolla did not support Neutron. This patch provides
initial Neutron support by implementing neutron-server
functionality. It also creates a neutron-base image that
provides common config and packages for all Neutron-based
services.

Partially Implements: Blueprint Kubernetes Neutron Container

Change-Id: I2399a1331992fae0f387f01e5b5c1c1d34f0637d
Docker image and process cleaup tool

When running Docker, you can unknowingly use up a lot
of memory.  This tool will make it easier to clean up
Docker.

Change-Id: Icfd780f12b01956093a2933dd484cde1e2d6d5bc
introduce a common base for compute and controller

This moves nova-ctr-base one level up and renames it nova-base, so that
we can share the same basic config between compute and controller pods.

Change-Id: I325f70c278744a1e1fe99b891e05c59c4248c55f
Merge "Docker image and process cleaup tool"
Merge "Adds Neutron Server Support"
fix script name in nova-controller images

Change-Id: Ia0b9057887bf34423546ca36346d9253ef4c90b9