apiserver based on fastAPI

An implementation of the backend based on fastapi.

This includes a docker image, as well as a current requirements file and a testing setup.

It still lacks authentication #10 (closed), frontend #9 (closed), final persistent storage #4 (closed) and better testing #12 (closed).

This closes issue #1 (closed)

apiserver/config/__init__.py

+from .settings import ApiserverSettings
\ No newline at end of file