Author: Mark Nelson
MDL-63591 core_grades: updated privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b564a551537643443ece8983ed345bd1fd2cad4e
http://github.com/moodle/moodle/commit/b564a551537643443ece8983ed345bd1fd2cad4e
+ 3.6 en [feedbackfiles,core_grades]
+ 3.6 en [feedbackhistoryfiles,core_grades]
+ 3.6 en [privacy:metadata:filepurpose,core_grades]