Added ZipCompressionStream & ZipDecompressionStream

[BlackAsLight]

Related to this issue #487 adds new two classes ZipCompressionStream and ZipDecompressionStream to work with the .pipeThrough and .pipeTo methods available on ReadableStreams.

I have not tested the changes I made to the repo as I'm not sure how to exactly with there seeming to be rollup in the mix and I also haven't used nodejs in ages. Let me know if you want me to make any other changes to it though.

[gildas-lormeau]

Thank you very much for your efforts. It looks fine to me, except for 3 details at first glance:

• would it be possible to name the classes ZipReaderStream and ZipWriterStream? I'd find that more coherent, as I don't use the terms "Compress" and "Decompress" in the API.
• today zip.js doesn't use the JS private members (e.g. #field or #method()) even though the code is partly based on ES2020. For the sake of consistency, it would be preferable not to use this feature for the time being. I'd prefer to refactor the code globally in zip.js to introduce this technical feature.
• you have to import these new classes into all the files that import zip-reader.js and zip-writer.js. An alternative would be to define the 2 new classes directly in these files.

If you wish, I can merge your PR and take care of these minor changes. It's up to you. In both cases, you will appear as a contributor ;)

[BlackAsLight]

Made those changes. You can feel free to merge and make any more changes yourself or let me know if you'd like me to make any more changes myself.

[BlackAsLight]

I also just noticed that my IDE did some white space changes that I didn't notice earlier. I can revert those if you'd like

[gildas-lormeau]

Thank you very much for your work. I've just published the new version with your contributions :)