Add install tool
The tool aims to make the deploying of stackube as easy as possible.
User could set up a whole Stackube cluster automatically by using it.
It uses docker images provided by OpenStack Kolla Project to run a
containerized OpenStack, and uses kubeadm to deploy kubenetes, then
bootstrap the Stackube cluster.
Change-Id: I6f18cf4d1a792bc505f955937f000dc0967341ce
Implements: blueprint cluster-installation
ba9fa99f6c