Docker image for compose

[marcus-sa]

Make it optional to use the CLI by creating a Docker image for the API.
I'm not entirely sure how this would be done, as all the emulator packages are optional and will be dynamically imported depending on the environment variable EMULATOR, so you'd have to install @vulture/EMULATOR as a dependency.

Maybe create a docker image for each emulator containing yarn add @vulture/EMULATOR with the name vulture-EMULATOR:VERSION that can be used in docker-compose.yml