[Container-tools] Cross-repo coordination: Make a proper docker service with sccli

[Brian (bex) Exelbierd]

The below would affect adb-utils, vagrant-service-manager and adb.

Create a "proper" docker service in sccli that can then be leveraged for 
management by other tools.

1. Breakout docker as a proper service to be managed
   - Add configuration reporting to allow for fixes for
     - DOCKER_TLS_VERIFY always set: 
https://github.com/projectatomic/vagrant-service-manager/issues/17
     - Don't report cert info if disabled: 
https://github.com/projectatomic/vagrant-service-manager/issues/19
   - Add cert generation to allow for fixes for
     - Calling a script to generate new certificates: 
https://github.com/projectatomic/vagrant-service-manager/issues/106
   - Do startup configuration allowing us to
     - consider moving lines 132-136 out of 
https://github.com/projectatomic/adb-atomic-developer-bundle/blob/master/build_tools/kickstarts/centos-7-adb-vagrant.ks 
and into a service startup with sccli
     - More cleanly define the startup of the box (TCP vs socket) and 
cert generation
       - 
https://github.com/projectatomic/adb-atomic-developer-bundle/issues/266
       - https://github.com/projectatomic/vagrant-service-manager/issues/82

Opinions?

regards,

bex