Project: moodle
Issue MDL-41267: Add support for admin tool subplugins
This was requested a few times already, since 2.6 this does not have any significant performance cost. It could help other tools too. The only potential problem is that admin tools are in $CFG->dirroot/$CFG->admin/tool, we need to deal with alternative $CFG->admin !== 'admin'
Story points: 5