WIP: Add Patient's Primary Payer
This commit adds the patient's "Preferred" payer the PatientDemographic.
We determine "Preferred" by taking the first used coverage record, according to Epic.Finance.PatientCoverageFileOrder. Records are ordered in descending order by FilingOrderID. Therefore, records where FilingOrderID == 1 are preferred and marked as "Primary."
Please provide any feedback by 6/19/2020
Edited by Hubbell, Harrison Taylor