spec: adds student quizzes with draft state spec

TEST PLAN
- run specs

Change-Id: Iab1fea8aef419e074012f94426531bc35013be79
Reviewed-on: https://gerrit.instructure.com/43124
Reviewed-by: Ryan Taylor <rtaylor@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Brian Finney <bfinney@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>