Support the use of dev containers for reproducible dev environment

[JonathanPlasse]

This would allow having the dev environment automatically set up and allow using code spaces.
https://code.visualstudio.com/docs/devcontainers/containers

[PhilippWu]

if #721 is solved it may also support devcontainers

[tiangolo]

Thanks for the interest! This would mean a somewhat tightly coupling with the specific product GitHub Code Spaces.

I think it could work for other types of projects that don't involve so much of handling different containers that the developer is expected to manage (e.g. the DB), so for now I would leave it as it is.

[yangliuyu]

https://github.com/loft-sh/devpod is an open source solution using devcontainer.json specification. No vendor lock-in.