Get a Form Instance, including its contents

This endpoint is different from Get Raw Digital Forms in Bulk in a couple ways:

• It returns the contents of a single form instance.
• It returns the contents of the form instance when it was submitted, even if the form template has changed. If fields were added to the form template, they will not be included.
• Fields that refer to another object (Asset, Document, Site or User) are a link to the API endpoint for that object
• Attachments are a link to download that image.
• Tables are included.