Create Docker image for project

[justwheel]

A Docker image lets us "configure" the environment with all the pre-requisites exactly as we wish. This makes it easier for the user to take the software and get started with it (similar to what @carloscdias did with Spark in aggregate_airport_mobility). I'm hoping to complete this in a few hours.

[mikefab]

@jflory7 This is great. I'd like to use this with the school-mapping application for validating uploaded schools.