Add project command entries to the menu-bar

Add project command entries to the menu-bar

This will make it easier for new users to learn these increasingly
important and useful commands.  (Bug#63469)

* lisp/menu-bar.el (menu-bar-file-menu): Add project-dired and
project-find-file entries.
(menu-bar-search-menu): Add project-find-regexp entry.
(menu-bar-replace-menu): Add project-query-replace regexp entry.
(menu-bar-shell-commands-menu): Add project-shell entry.
(menu-bar-buffers-menu-command-entries): Add project-switch-to-buffer
and project-list-buffer entries.
(menu-bar-project-menu): Add.
(menu-bar-tools-menu): Add "Project" submenu, and also project-compile
entry and change text for compile entry.