Replace add_to_log with an event trigger - mod_quiz

Test 1 Run the unit tests in "mod/quiz/tests/events_test.php" and "question/tests/events_test.php" and ensure all passes. Test 2 Visit <yoursite>/admin/settings.php?section=managelogging and enable the standard and legacy log. On one tab open up to <yoursite>/report/log/index.php?id=1 and select the legacy log for now. Create a quiz instance. View the quiz and check that there is an 'quiz view' log. Visit <yoursite>/mod/quiz/index.php?id=<idofthecourse > and check that there is an 'quiz view all' log Edit the quiz and create a question and check that there is a 'quiz editquestions' log. Click 'Add a random question' on the edit quiz page and create a category and check that there is a 'quiz addcategory' log. Click 'Quiz administration' > 'Results' > 'Grades' and check that there is a 'quiz report' log. Add a question to this quiz, log in as a student, answer the questions and click 'Submit all and finish'. View the log tab and check that there are the following logs in the order - 'quiz attempt' -> 'quiz continue attempt' -> 'quiz view summary' -> 'quiz review' As an administrator review the attempt and select 'Make comment or override mark'. Edit the grade, enter a comment, submit and check that there is a 'quiz manualgrade' log. Under 'Quiz administration' select 'User overrides'. Click 'Add user override'. Create a user override and check that there is a 'quiz edit override' log. Delete this override and check that there is a 'quiz delete override' log. Delete the user's attempt and check that there is a 'quiz delete attempt log. On the log tab change to the standard log. Go through all the above events in the list (note - you do not need to perform the actions again, simply look for them in the log list) and click on the event names and ensure they take you to a valid URL.