Add a composer.json to enable support for PIE

[bix0r]

See: https://github.com/php/pie/blob/main/docs/extension-maintainers.md

[omars44]

Hi @bix0r, good to see u're back :)

Let's please work on >= PHP 8.1

The rest are EOLed, we shouldn't really spend any efforts there, either we fully support or not fully support. Let's focus our efforts towards the future, I'm happy to have a call about this if needed.

[omars44]

'>= 8.1, <=8.4'

[bix0r]

@omars44 I agree that we should aim to sync with PHP on the versions. At least for this new pie stuff. Perhaps not remove support for old versions in code unless we need to.

I will rebase the packaging PR when this is merged.

[bix0r]

I am going to move this PR to draft because there is some discussion on the vendor name for extensions living in github.com/php. See Composer issue.

[omars44]

I am going to move this PR to draft because there is some discussion on the vendor name for extensions living in github.com/php. See Composer issue.

sure