Remove g_filename_{to,from}_utf8

Remove g_filename_{to,from}_utf8

2000-11-12  Robert Brady  <robert@suse.co.uk>

	* gstrfuncs.c, gstrfuncs.h: Remove g_filename_{to,from}_utf8

	* gconvert.c, gconvert.h: Add g_filename_{to,from}_utf8 and
	g_locale_{to.from}_utf8.  The locale_ variant honours
	nl_langinfo(CODESET), the filename_ variant uses UTF-8 unless
	asked otherwise.

	(g_convert): Add G_CONVERT_ERROR_PARTIAL_INPUT error, if bytesread
	!= length and no bytesread pointer passed.