Add Hooks for PyInstaller

[MaidScientistIzutsumiMarin]

Currently, packaging and running the following minimal example with PyInstaller and --collect-data mscerts results in a FileNotFoundError.

from pathlib import Path

from signify.authenticode import AuthenticodeFile

with Path("test.dll").open("rb") as file_obj:
    _, exception = AuthenticodeFile.from_stream(file_obj).explain_verify()
    if exception is not None:
        raise exception

This is caused by signify\authenticode\legacy-certs.pem not being added to the package by PyInstaller.

The current workaround for users is to include --collect-data signify in the PyInstaller command or to add signify\authenticode\legacy-certs.pem with --add-data. It is likely better to do the former since the increase in size from doing so is negligible (or potentially non-existent) while reducing the risk of an error.

A proper fix for this would be for signify to include a PyInstaller hook to make sure relevant data files are collected. Documentation for adding hooks can be found here: https://pyinstaller.org/en/stable/hooks.html

[ralphje]

I agree that adding hooks to this package or mscerts for that matter seems beneficial, however, I'm unable to fully test this. I'd be happy to accept a PR that includes these changes.

I do have to note that the data files are properly marked in pyproject.toml, so it's a bit beyond me why PyInstaller does not include those files by default.