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=ff0e4387806caf7e2acd5ea790b0ecc5216e1cab
http://github.com/moodle/moodle/commit/ff0e4387806caf7e2acd5ea790b0ecc5216e1cab
+ 3.3 en [privacy:metadata,core_portfolio]