Author: Ferran Recio
MDL-71863 courseformat: create courseformat subsystem
http://git.moodle.org/gw?p=moodle.git;a=commit;h=21d93554d4ce8b8973a81f78d3d4ee7f61c87056
http://github.com/moodle/moodle/commit/21d93554d4ce8b8973a81f78d3d4ee7f61c87056
+ 4.0 en [privacy:metadata,courseformat]