Support for Partitioned attribute

[supersnager]

Hi, it would be great if the library supported the "Partitioned" attribute.
References:
https://developer.mozilla.org/en-US/docs/Web/Privacy/Partitioned_cookies
https://github.com/privacycg/CHIPS

[punithk]

Hi, I created a pull request adding support for this functionality along with tests: #151

[misi]

I would be also happy if I can use this new attribute. @dougwilson is there anything I can help in it?

[nicob-29]

Google plan soon to activate the feature: https://privacysandbox.com/open-web/#the-privacy-sandbox-timeline
Any update ?

[nicob-29]

@dougwilson
Thanks !