Author: Mihail Geshoski
MDL-61969 datapreset_imagegallery: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=bb9dcb7479e407d58e0191e218d4556c6829cdb7
http://github.com/moodle/moodle/commit/bb9dcb7479e407d58e0191e218d4556c6829cdb7
+ 3.4 en [privacy:metadata,datapreset_imagegallery]