Behat test for 1729423 - can't choose comment to make public

[Rebecca Blundell]

adding a test that one out a list of private comments can be made public

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/8302

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/8302
Committed: https://git.mahara.org/mahara/mahara/commit/474fda4476bea0c600f4811d58b7045d6b56758f
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit 474fda4476bea0c600f4811d58b7045d6b56758f
Author: Rebecca Blundell <email address hidden>
Date: Thu Nov 23 13:13:11 2017 +1300

Bug 1733769: test for making one comment from a list public

new general step for interacting with comment based on text in comment
edited property step to abstract out switch statement into its own funct
test making a comment public works on one comment only
test functionality for page owner/comment owner approval of making
comments public.

Change-Id: I411e854ef2280b9d8731e5307d81f5a507902bd6