code: public static List<Person> getMockPeopleSet1() {
          List<Person> listPeople = new ArrayList<Person>();
          listPeople.add(new Person("Henry Blair", "07123456789", R.drawable.male1));
          listPeople.add(new Person("Jenny Curtis", "07123456789", R.drawable.female1));
          listPeople.add(new Person("Vincent Green", "07123456789", R.drawable.male2));
          listPeople.add(new Person("Ada Underwood", "07123456789", R.drawable.female2));
          listPeople.add(new Person("Daniel Erickson", "07123456789", R.drawable.male3));
          listPeople.add(new Person("Maria Ramsey", "07123456789", R.drawable.female3));
          listPeople.add(new Person("Rosemary Munoz", "07123456789", R.drawable.female4));
          listPeople.add(new Person("John Singleton", "07123456789", R.drawable.male4));
          listPeople.add(new Person("Lorena Bowen", "07123456789", R.drawable.female5));
          listPeople.add(new Person("Kevin Stokes", "07123456789", R.drawable.male5));
          listPeople.add(new Person("Johnny Sanders", "07123456789", R.drawable.male6));
          listPeople.add(new Person("Jim Ramirez", "07123456789", R.drawable.male7));
          listPeople.add(new Person("Cassandra Hunter", "07123456789", R.drawable.female6));
          listPeople.add(new Person("Viola Guerrero", "07123456789", R.drawable.female7));
          return listPeople;
      }
docs: Returns a mock List of Person objects