Refactor /birth endpoint to include all birth fields from the excel sheet

[Siyasanga]

Refactor the endpoint to include all the birth fields being sent from the client side

As a user I want to see all the data I submit from the Birth form to be save on the backend

Tech tasks:

• Refactor the RequestSchema to include all the fields
• Refactor the BirthRepo to accommodate all the new fields from client side
• Refactor the mongoDB model to include all the new fields