add lock_version to context module progressions

preparation for rework of the context module progression evaluation

test plan:
 * automated tests pass

refs CNVS-11818

Change-Id: I10618e576c7b44aebce0a9803876b8f543d9b61b
Reviewed-on: https://gerrit.instructure.com/32904
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Cody Cutrer <cody@instructure.com>
QA-Review: Matt Fairbourn <mfairbourn@instructure.com>
Product-Review: Mark Severson <markse@instructure.com>