## Summary
These examples are outdated and don't show recent embeddable best
practices. They also use client-side saved object client and block
making `SavedObjectFinder` backward compatible
https://github.com/elastic/kibana/pull/162904 as the `foobar` saved
objects need to be added to content management. We decided that it is
better to clean them up, as fixing them is not a small effort and it is
not worth it on this point as a large embeddable refactor is coming.
Added an attribute service to embeddable start contract which provides a higher level abstraction for embeddables that can be by reference OR by value. Added an example that uses this service.
* Add embeddable via saved object example
* give todoRefEmbed a different name from the by value one
* fix types
* fix order of unmounting
Co-authored-by: Christos Nasikas <christos.nasikas@elastic.co>
