Add errors.json file management

[evamaxfield]

Use Case

Please provide a use case to help us understand your request in context

In the case 1 or 2 elements error out of 10000, we don't really want the entire pipeline to fail, but we should encourage people logging their errors.

Solution

Please describe your ideal solution

I did this with actk here

Where I split the success and errored results into their appropriate categories and save them to their appropriate files. But, this errors.json file isn't sent to Quilt. Simply support another file being sent to Quilt is all.