New locale: Yakut (Sakha) for Russia (sah_RU) [BZ #22241]

	* localedata/Makefile (test-input): Add sah_RU.UTF-8.
	(LOCALES): Likewise.
	* localedata/SUPPORTED (sah_RU/UTF-8): New entry.
	* localedata/locales/sah_RU: New file.
	* localedata/sah_RU.UTF-8.in: New file.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>