ECRO-2785: Add new RLC fields

[weymanf]

Description

With the new RLC changes, we need to include 3-4 new fields onto the screening.

1. result
   • This field will include the result of the screening while the status will be "complete" when a result is present.
2. cancellation_reason
   • This will be the programmatic field for the cancellation reason
3. cancellation_reason_description
   • This is a more verbose description of the cancellation.
4. includes_canceled
   • This will be a boolean value that will only occur for screenings with subitems (employment/education histories).
   • N/A for all screenings