Author: Sara Arjona
MDL-61957 gradereport_user: Implement privacy API
http://git.moodle.org/gw?p=moodle.git;a=commit;h=18b98348a9a6b1d1584f928542f1e1542f436a44
http://github.com/moodle/moodle/commit/18b98348a9a6b1d1584f928542f1e1542f436a44
+ 3.3 en [privacy:metadata:preference:gradereport_user_view_user,gradereport_user]