[add:php] Add 2 controllers to the Controller folder

Add HouseholdsController and IndicatorsController php files containing
the controllers for each respective Model.
[add:php] Add 3 controllers to the Controller folder

Add LegendsController, NavigationDetailsController and
OilUsagesController php files containing the controllers for each
respective Model.
[add:php] Add 2 controllers to the Controller folder

Add PregnantMotherKnowledgesController and PregnantMothersController php
files containing the controllers for each respective Model.