All the setup/teardown/pre/post/conditions template methods
now are required to return void. This was warned with phpunit 7
and now is enforced.
At the same time, fix a few wrong function names,
provider data and param types, return statements...
When different ID's are set for each sequence a number
of unit test failures appear. They have been corrected
to allow unit tests to pass with the new generator in place.
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.