add fixture data for testing
CLOSED - task 21: Add unit tests for AwardsResource 
https://github.com/DigitalCampus/django-oppia/issues/issue/21
CLOSED - task 31: Add unit tests for UserResource 
https://github.com/DigitalCampus/django-oppia/issues/issue/31
CLOSED - task 24: Add unit tests for CourseTagResource 
https://github.com/DigitalCampus/django-oppia/issues/issue/24
CLOSED - task 23: add unit tests for CourseResource 
https://github.com/DigitalCampus/django-oppia/issues/issue/23