These functions were only used by the deprecated function
which was deprecated in 3.1, and removed in 3.6.

Mark Johnson authored Nov 17, 2017 and David Mudrák committed Aug 31, 2018

This allows the teacher to define what students are supposed to submit
(online text and/or attachment) and if the given submission part is
required or optional.

We need additional info from the dimensions used like the scale items
(if used).

All events equals all calendar events including completion events.

This event was missed in the previous workshop add_to_log change over. The
switch phase event has been moved into the workshop::switch_phase() method.
Also workshop::log() has been deprecated. Developers should use the event
classes to log events.