Author: Jake Dallimore
MDL-61663 core_portfolio: add subsystem privacy provider
Added provider for portfolio plugins, and legacy polyfill for plugins.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e6f06ce99487957e180be8055d3cd339cf39824a
http://github.com/moodle/moodle/commit/e6f06ce99487957e180be8055d3cd339cf39824a
+ 3.5 en [privacy:metadata,core_portfolio]