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