Add more tests for bookmark-bmenu-list

Add more tests for bookmark-bmenu-list

* test/lisp/bookmark-tests.el (cl-lib): Require.
(bookmark-test-bmenu-toggle-filenames)
(bookmark-test-bmenu-toggle-filenames/show)
(bookmark-test-bmenu-show-filenames)
(bookmark-test-bmenu-hide-filenames)
(bookmark-test-bmenu-bookmark, bookmark-test-bmenu-mark)
(bookmark-test-bmenu-any-marks, bookmark-test-bmenu-unmark)
(bookmark-test-bmenu-delete, bookmark-test-bmenu-locate): New
tests.

(bookmark-test-bmenu-edit-annotation/show-annotation): Rename from
'bookmark-bmenu-edit-annotation/show-annotation'.
(bookmark-test-bmenu-send-edited-annotation): Rename from
'bookmark-bmenu-send-edited-annotation'.
(bookmark-test-bmenu-send-edited-annotation/restore-focus): Rename
from 'bookmark-bmenu-send-edited-annotation/restore-focus'.