Creates a new lien filing submission against a specified business
in a draft state. This endpoint enables clients to submit all
necessary information required for a lien filing, including
the type of filing, relevant parties (secured parties and debtors),
and a comprehensive description of the collateral.

Upon successful creation, the system assigns a unique identifier
to the lien filing draft, which can be utilized for
future modifications or inquiries.

The creation process entails the validation of the submitted
information, its association with the designated business entity,
and the preparation of the filing for subsequent processing steps.

If the request body does not include secured parties, the system
will attempt to generate the first secured party using the
organization's lien filing preferences, if they are present in
the organization's profile.

It's important to note that the actual filing with
the appropriate jurisdiction does not occur at this stage;
this endpoint essentially sets up the submission in a draft state,
ready for submission through
the POST /lien_submissions/{filing_id}/submit endpoint.