Adds support for multipart/form-data requests in the public api
allowing documents to be uploaded without having to perform a secondary
request.
Need to rollout further endpoints for envelopes and templates.
Need to change how we store files to not use `putFileServerSide`
## Description
Direct templates links is a feature that provides template owners the
ability to allow users to create documents based of their templates.
## General outline
This works by allowing the template owner to configure a "direct
recipient" in the template.
When a user opens the direct link to the template, it will create a flow
where they sign the fields configured by the template owner for the
direct recipient. After these fields are signed the following will
occur:
- A document will be created where the owner is the template owner
- The direct recipient fields will be signed
- The document will be sent to any other recipients configured in the
template
- If there are none the document will be immediately completed
## Notes
There's a custom prisma migration to migrate all documents to have
'DOCUMENT' as the source, then sets the column to required.
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Co-authored-by: Lucas Smith <me@lucasjamessmith.me>
