[add:php, ctp] Create function to get Household information to mobile

Create the functionality to send Household information through the API
to the mobile app.
[mod:ctp] Add save and retrive functionality to household from mobile

Add functionality to save household info and get household by an id
 using the API
[add:php, ctp] Add Models, Views and Controller for the API

Add Views, Models and Controllers fot Family Members, Health Issue,
Navigation Details, Pregnant Mothers, WHR and BMI.