scan.go
func (s Scan) SetUDPPorts(ports ...uint16) Scan {
	s.configUDPPorts = ports
	return s
}
func (s Scan) SetUDPPorts(ports ...uint16) Scan {
	s.configUDPPorts = ports
	return s
}
// SetUDPPort sets which TCP-only ports are used to scan