Changes

Deliverable 1 - sub task: Collect registration date for DSTB/Presumptive
cases manually (user input) from the notification form.

Deliverable 1 - sub task: Collect registration date for DSTB/Presumptive
cases manually (user input) from the notification form. Remove field
healthunitRegistrationDate from class model.
Deliverable 1, sub task: Result for Xpert Test always comes out as
Resistant regardless of the option filled in the notification form. 
Create async task to update all ri resistance field according to the
current rule implemented.