bzip2 support in the compress processor?

[mihaitodor]

I noticed that the bzip2 algorithm is available only in the decompress processor and I'm guessing this is because the Go standard lib doesn't have an implementation for bzip2 compression. Do you think it might be useful to have this added through a 3rd party lib?

Doing a bit of digging, I saw there's some talk of having https://github.com/dsnet/compress/tree/master/bzip2 eventually included in the standard lib (discussions here and here), but the implementation is complex and they haven't bothered yet "due to a lack of knowledgeable reviewers".