Add hook for parsedatetime

[bwoodsend]

Fixes 4995.

I've not really tested it to death. Anything you'd particularly want it tested for?

[Legorooj]

@bwoodsend nice work with the hook, just one problem: we already have a utility more accurate (PyInstaller.utils.collect_submodules). I've tested this works because I was wondering why you using a manual listing of the submodules:

(venv) D:\PyInstaller-Issues> python -c "import PyInstaller.utils.hooks as pyi, pprint; pprint.pprint(pyi.collect_submodules('parsedatetime.pdt_locales'))"
['parsedatetime.pdt_locales.es',
 'parsedatetime.pdt_locales.en_US',
 'parsedatetime.pdt_locales.icu',
 'parsedatetime.pdt_locales.pt_BR',
 'parsedatetime.pdt_locales',
 'parsedatetime.pdt_locales.en_AU',
 'parsedatetime.pdt_locales.de_DE',
 'parsedatetime.pdt_locales.ru_RU',
 'parsedatetime.pdt_locales.base',
 'parsedatetime.pdt_locales.fr_FR',
 'parsedatetime.pdt_locales.nl_NL']

If you could replace the contents of the hook with hiddenimports = collect_submodules('parsedatetime.pdt_locales') that would be great...

We also need a changelog. See news/README for details.

[bwoodsend]

Ahh very neat. Gets rid of that ugly try except too. I take it you'd rather I squashed these updates into the previous commit so that it's still just the one commit for this PR?

[Legorooj]

@bwoodsend don't bother; I can squash merge it as a single commit.

[Legorooj]

Changelog please... Otherwise looks good!

[bwoodsend]

There we go

[Legorooj]

Thanks for this!