Add support for the Makasar and Lontara scripts (bug#55734)

Add support for the Makasar and Lontara scripts (bug#55734)

* lisp/language/indonesian.el ("Makasar") ("Buginese"):
New language environment. Add composition rules for Makasar
and Lontara. Add sample texts and input methods.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Makasar and Buginese.
* lisp/leim/quail/indonesian.el ("makasar") ("lontara"):
New input methods.

* etc/HELLO: Add Makasar and Buginese greetings.
* etc/NEWS: Announce the new language environments.