converts quiz_submission js_block into js_bundle

test plan:
* regression testing of quiz submissions

Change-Id: Ida18f0c0a9b8d5fc14dbb0f86b50ab42876700ed
Reviewed-on: https://gerrit.instructure.com/29136
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jon Jensen <jon@instructure.com>
QA-Review: Myller de Araujo <myller@instructure.com>
Product-Review: Landon Wilkins <lwilkins@instructure.com>