Author: Andrew Nicols
MDL-61896 filter: Implement privacy API for all filters
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e484db7c94f87f1b4077a9874cc39a6aafae378f
http://github.com/moodle/moodle/commit/e484db7c94f87f1b4077a9874cc39a6aafae378f
+ 3.5 en [privacy:metadata,filter_activitynames]
+ 3.5 en [privacy:metadata,filter_algebra]
+ 3.5 en [privacy:metadata,filter_censor]
+ 3.5 en [privacy:metadata,filter_data]
+ 3.5 en [privacy:metadata,filter_emailprotect]
+ 3.5 en [privacy:metadata,filter_emoticon]
+ 3.5 en [privacy:metadata,filter_glossary]
+ 3.5 en [privacy:metadata,filter_mathjaxloader]
+ 3.5 en [privacy:metadata,filter_mediaplugin]
+ 3.5 en [privacy:metadata,filter_multilang]
+ 3.5 en [privacy:metadata,filter_tex]
+ 3.5 en [privacy:metadata,filter_tidy]
+ 3.5 en [privacy:metadata,filter_urltolink]