Add support for Python backend about wasp HOT 1 OPEN

Here is how user is currently combining Python with Wasp:

Currently my implementation is same as the first way mentioned under Using Python right now in the above issue.

In the wasp repo itself, in a separate directory, I keep all my FastAPI code and I also have a pyproject.toml to manage library version, dependencies, tool configs, etc.
I have a separate Dockerfile for FastAPI deployment. I thought of adding FastAPI code in the wasp docker image itself by manipulating wasp generated Dockerfile but decided against it as this could quickly get out of control.

I define all my tables required by both node and python as entities in the main.wasp file itself. To generate prisma client for python, I use an approach which is similar to what @miho mentioned above.

I call the FastAPI routes from node code. One can host the FastAPI docker either in same machine as node or in a separate machine as per their need.

This is the approach which is currently working for me.

Discord convo: https://discord.com/channels/686873244791210014/1235922607317188732/1239462541147770890 .

from wasp.