Display attribute sets attribute is attached to on attribute edit form

[tmotyl]

Description (*)

I would like to see a list of attribute sets given attribute is attached to, on the attribute edit form.
If the attribute is attached to all attribute sets, then it should display "all attribute sets"

Expected behavior (*)

Benefits

It will improve the life of the users managing data and developers, as they are now able to quickly check which attribute is used everywhere and which is just used in one attribute set.

Additional information