bug#63469: 29.0.90; project.el doesn't add menu-bar entries

[Eli Zaretskii]

> Cc: 63469@debbugs.gnu.org
> From: Juri Linkov <juri@linkov.net>
> Date: Mon, 15 May 2023 19:49:11 +0300
> 
> > Some proposed additions:
> > - File, "Open File In Project",
> >   project-find-file
> > - Edit -> Search, "Search Files In Project",
> >   project-find-regexp
> > - Edit -> Replace, "Replace Regexp In Project",
> >   project-query-replace-regexp
> > - Tools -> Shell Commands, "Run Shell Interactively In Project",
> >   project-shell
> > - Buffers, "Select Buffer In Project",
> >   project-switch-to-buffer
> 
> OTOH, when project menu entries are grouped under a single submenu,
> it would easier to use them, including context menus, etc.

These are not exclusive alternatives, we could have both a separate
menu and individual items in other menus.