Multiple Parent Phone Numbers connect parent to the correct student records for editing

[CritiqalPete]

Parents need to be able to login using their phone to various apps and correctly connect with their student record.
Sometimes a record could be created by a coach but then later a parent will want to access and edit or accept waivers.

We need to scan all these fields for a match after authenticating a user for the first time and if the number matches, retrieve those records.

The Auth and Data APIs needs to handle this transaction and return

1. a list of student contacts for viewing and selecting
2. a PATCH method to update any of the form fields

[CritiqalPete]

@lautirozen please add any additional requirements for the Web Registration