Cannot be used as a standalone script when installed via pip

[k4nar]

Hi,

PR #65 has introduced a very convenient way of using the project with python -m autotyping.

However, it doesn't work when installing the project via pip 🥲 :

$ pip install git+https://github.com/JelleZijlstra/autotyping@master
[...]
$ python -m autotyping --safe foo.py                                
python: No module named autotyping.__main__; 'autotyping' is a package and cannot be directly executed

The file __main__.py is indeed missing from the distributed package.

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Also, it would be even more awesome if the project was providing a cli entrypoint, so that autotyping could be used as a command 🥳 .

[k4nar]

If you stumble upon this issue and you impatiently want to use this project without libcst.tool, cloning the repository and installing it with pip install -e . works.

[JelleZijlstra]

Would you be interested in contributing a PR? It would be good to add the entrypoint too.

I'd probably cut a release after this is fixed (cc @hauntsaninja in case you were thinking of contributing other changes).

[hauntsaninja]

Sure, I can open a PR

[k4nar]

I can confirm it works, thanks 🙌 !