Docker Compose for Backend, Daemon, and GUI

[ethanwillis]

Create a docker compose configuration file that can build and run the Backend, Daemon, GUI, and database in a single step.

Need docker-compose configuration files for

• Test environment
• Dev environment
• Production environment.

See: #1

[ethanwillis]

Work for this is occurring in https://github.com/ethanwillis/SpeedSeed3/tree/docker