[Feat] Download files as a part of the request response

[calebpeffer]

Customers often want to grab CSV and PDF files that are hosted on a website. Right now, we handle converting PDF files, but what about CSV?

A potential solution here is just to include this in the output of the endpoints somehow. Maybe as an optional parameter. Or as a list of links of specific formats?

What do you think @nickscamara @rafaelsideguide