This is just a showcase for component helpers/fields.
The question here is:
1. Where those layouts should live, root/layouts or component/layouts?
Tests
No tests here. Yet!
These is work in progress, although everything should work as before.
But please bear in mind that this depends on other code, currently not publicly available.
com_modules may have set the precedent for component specific layouts in the component's folder (there's some toolbar layouts there for buttons only used in that component).
Personally component/layouts to show the developer how it should be done in the
right way
. And as far i know these layouts are component specific?