Add feature for Serde

[lleyton]

It's useful if you need to store the repo metadata into a different format. In our case, we're using it serialize it as JSON for Mellisearch.

[dralley]

You're serializing the whole object? Those can get quite large with all of the file lists, which most people don't even care about

[dralley]

@lleyton Could you describe a bit about your use case?

[lleyton]

Yeah, in my use case, I'm serializing all of the packages within several repos to JSON in order to load them into a mellisearch index. My plan is to use this index for a web app which allows full-text package search (descriptions, names, author, etc..).

[dralley]

Ok. You're sure you'll want everything and not a more restricted set of fields?

[lleyton]

Hmm, it's likely that I'll want a more restricted set of fields when I'm further along. For prototyping though, I'm using all of them for now.

[dralley]

I'm a little hesitant to merge this unless if it's not exactly what is needed. Would you mind if I waited to merge and release this until you are mostly done with your prototype?

[lleyton]

Sounds good with me :)