Rename minor-modes to local-minor-modes

Rename minor-modes to local-minor-modes

* doc/lispref/modes.texi (Minor Modes): Update documentation.
* lisp/simple.el (completion-with-modes-p): Change usage.

* lisp/emacs-lisp/easy-mmode.el (define-minor-mode): Change usage.

* src/buffer.c: Rename from minor_modes to local_minor_modes
throughout.
(syms_of_buffer): Rename minor-modes to local-minor-modes.

* src/buffer.h (struct buffer): Rename minor_modes_.

* src/pdumper.c (dump_buffer): Update hash and usage.