Allow uploading of files and embedding of photos/video in custom forms

Description - Allow for a field on a custom form to accept the uploading of files/photos/videos.

Why is this feature important to you - It would allow our teams to get a preview of prior work that needs updating without having to navigate away from the deliverable details.

How would you like the feature to work - Either a new field type or allow an existing field type to accept the uploading of files/photos/video to it, possible embedding of video/photos in the field as well.

Current Behaviour - Non-existent