add shorthand helper for use_new_styles?

This is just a shortcut since we will be typing
it a lot. just like we do for k12.

Change-Id: I5bc9c733773eb51eebc6eca24fd2f5b78ca3207e
Reviewed-on: https://gerrit.instructure.com/39567
Reviewed-by: Colleen Palmer <colleen@instructure.com>
Product-Review: Colleen Palmer <colleen@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Ryan Shaw <ryan@instructure.com>