Implement providers for report components

Testing can be completed by running the attached testwithmanager.php script (see ------ MDL-61571 ------ for the original script location) in the Moodle root folder. Make sure you've purged the cache (php admin/cli/purge_caches.php), before running testwithmanager.php. e.g. php testwithmanager.php | grep report Check that following report components are compliant: report_backups report_competency report_configlog report_courseoverview report_eventlist report_insights (NOTE: this component is not available in 33) . report_log report_loglive report_outline report_participation report_performance report_questioninstances report_security report_stats report_useressions For each: check that report_completion is a null provider check that the null reason is valid You should receive a script output like: Testing the compliant plugins:   .....   == report_backups (report_backups\privacy\provider) ==       'The report_backups plugin does not store any personal data.' == report_competency (report_competency\privacy\provider) ==       'The report_competency plugin does not store any personal data.' == report_configlog (report_configlog\privacy\provider) ==       'The report_configlog plugin does not store any personal data.' == report_courseoverview (report_courseoverview\privacy\provider) ==       'The report_courseoverview plugin does not store any personal data.' == report_eventlist (report_eventlist\privacy\provider) ==       'The report_eventlist plugin does not store any personal data.' == report_insights (report_insights\privacy\provider) ==       'The report_insights plugin does not store any personal data.' == report_log (report_log\privacy\provider) ==       'The report_log plugin does not store any personal data.' == report_loglive (report_loglive\privacy\provider) ==       'The report_loglive plugin does not store any personal data.' == report_outline (report_outline\privacy\provider) ==       'The report_outline plugin does not store any personal data.' == report_participation (report_participation\privacy\provider) ==       'The report_participation plugin does not store any personal data.' == report_performance (report_performance\privacy\provider) ==       'The report_performance plugin does not store any personal data.' == report_questioninstances (report_questioninstances\privacy\provider) ==       'The report_questioninstances plugin does not store any personal data.' == report_security (report_security\privacy\provider) ==       'The report_security plugin does not store any personal data.' == report_stats (report_stats\privacy\provider) ==       'The report_stats plugin does not store any personal data.' == report_usersessions (report_usersessions\privacy\provider) ==       'The report_usersessions plugin does not store any personal data.'