Extend the syntax of `interactive' to list applicable modes

Extend the syntax of `interactive' to list applicable modes

* doc/lispref/commands.texi (Using Interactive): Document the
extended `interactive' form.
* doc/lispref/loading.texi (Autoload): Document list-of-modes
form.

* lisp/emacs-lisp/autoload.el (make-autoload): Pick the list of
modes from `interactive' out of the functions.

* lisp/emacs-lisp/bytecomp.el (byte-compile-lambda): Allow for the
extended `interactive' form.

* src/callint.c (Finteractive): Document the extended form.

* src/data.c (Finteractive_form): Return the interactive form in
the old format (even when there's an extended `interactive') to
avoid having other parts of Emacs be aware of this.
(Fcommand_modes): New defun.

* src/emacs-module.c (GCALIGNED_STRUCT): Allow for modules to
return command modes.

* src/lisp.h: New function module_function_command_modes.