import true/false questions consistently

test plan:
* import the package referenced in the ticket
* for the imported quiz, true/false questions
 should have their answers in the same order
 as ones created within the canvas ui
* therefore editing an imported true/false question
 should not rewrite the answer texts (causing it
 to be wrong)

closes #CNVS-16258

Change-Id: I18ac3d661502c17750108fc372fff2a59714dd42
Reviewed-on: https://gerrit.instructure.com/45395
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Jahnavi Yetukuri <jyetukuri@instructure.com>
Reviewed-by: Jeremy Stanley <jeremy@instructure.com>
Product-Review: James Williams  <jamesw@instructure.com>