Nail down what exactly the filingReferencNumber is

[BryceStevenWilley]

It's used in a few places, and I've only seen it described as a User provided reference number (per document). Should add more description, both to the user and internally in the code docs.

[BryceStevenWilley]

Not going to add more description internally tbh. Will add some explaination on the DA side though.

Quotes from the reference guide, that are really just "User provided reference tracking number":

DocumentFileControlID | A filer provided tracking number

DocumentFileControlID | Filer provided reference number