Refactor household member data in to an Array of Objects.

[trevorshannon]

Currently, each data field about other household members is stored in its own Array, e.g. householdAges and householdDisabled storing the ages and the disabled status of each household member, respectively.

It would be cleaner to have a single Array of household member Objects, something like:

input.householdMembers == [{
  age: 24,
  disabled: false,
  pregnant: false,
  breastfeeding: false,
  dependent: false,
  spouse: true,
}];