Author: Sara Arjona
MDL-61954 gradeimport_xml: Implement privacy API
http://git.moodle.org/gw?p=moodle.git;a=commit;h=5309e7f63d45965b042823ea4c68960c6707231b
http://github.com/moodle/moodle/commit/5309e7f63d45965b042823ea4c68960c6707231b
+ 3.4 en [privacy:metadata,gradeimport_xml]