Request support for FTEX format 44

[ZzzzzzzSkyward]

function switnvt( &$file, $base, $pfx, $id )
{
	printf("== switnvt( %x , %s , %d )\n", $base, $pfx, $id);
...
	$list_fmt = array(
		44 => ? , 
		0x49 => 'im_bc4',
		0x4d => 'im_bc7',
	);
	if ( ! isset($list_fmt[$fmt]) )
		return php_error('UNKNOWN im fmt  %x', $fmt);
	printf("DETECT  fmt %s , %x x %x \n", $list_fmt[$fmt], $w, $h);
...
}

SecretFile.zip