Just a quick question, has anyone managed to create a custom field type for Umbraco 8 Form?

The scenario is as follows - user submitted new articles, The user can complete a form and as part of that I want to allow them to upload a file(s) on that form which when submitted will go onto a content node, the doctype has a media picker that displays the documents on the new article page.

This is the issue I am facing - https://github.com/umbraco/Umbraco.Forms.Issues/issues/156