.c files in src/lib/elementary should only include elm_priv.h to ensure
that all the include ordering is correct and that all necessary headers
are pulled in
.c files outside of src/lib/elementary should include either/both
Efl_Ui.h, Elementary.h as needed
Reviewed-by: Stefan Schmidt <stefan@datenfreihafen.org>
Differential Revision: https://phab.enlightenment.org/D9978