Containerize Share Space components

[alexjball]

A room deployment consists of:

• Node room server, handles auth, serves media and control
• x11vnc VNC server
• ffmpeg screen capture
• Xvfb Cinnamon X session
• Static frontend files -- Optional, can use base deployment

Each instance is currently deployed to a single VM using a bash script and Vagrant. This works fine for development and private, manual deployments. To support automated deployments and easier management, We should containerize the application.

The application should be deployable using either Docker compose or a Kubernetes pod.