create dockerfile for build environment

[KelsonBall]

Our build/dev environment will require a number of tools installed. To make it as easy as possible for developers to set up a build environment with all the correct tools and correct versions without impacting their host environment we should create a docker file or docker image for building/debugging from.

Dev Tools that will be needed

• nodejs and npm
• typescript, babel, react/jsx (for front end UI)
• dotnet core sdk 2.1.300 (for site hosting and signalr api)
• Rust and Cargo Web (for webgl rendering)
• Apache Casandra (for persistence layer)

In addition to just creating an image with the correct tools, we'll need to figure out how to mount a folder from the host and connect to a running instance on localhost.

Resources:

• debugging dotnet core apps in docker
• setting up development env with casandra
• setting up a node dev environment

[KelsonBall]

There should probably also be a powershell script, a bash script, and a documentation file included as part of this project to help people get up and running.