Fix interactive mode tagging for man and woman

Fix interactive mode tagging for man and woman

* lisp/man.el (man-common): New mode inheriting special-mode.
(Man-mode):
* lisp/woman.el (woman-mode): Inherit from man-common.

* lisp/man.el (man-follow, Man-update-manpage)
(Man-fontify-manpage, Man-cleanup-manpage, Man-next-section)
(Man-previous-section, Man-goto-section)
(Man-goto-see-also-section, Man-follow-manual-reference)
(Man-kill, Man-goto-page, Man-next-manpage)
(Man-previous-manpage): Change interactive mode tag to man-common.

This was discussed in:
https://lists.gnu.org/r/emacs-devel/2021-02/msg01619.html