Author: Mihail Geshoski
MDL-61969 datapreset_imagegallery: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=22f6afdcd5364d2a34f3e3f2fa1a583987737f59
http://github.com/moodle/moodle/commit/22f6afdcd5364d2a34f3e3f2fa1a583987737f59
+ 3.3 en [privacy:metadata,datapreset_imagegallery]