建议增加SO_REUSEPORT，SO_REUSEADDR在linux下多开进程是无效的

[pony5551]

class function TSocketAPI.SetReUsePort(const ASocket: THandle;
const AReReUsePort: Boolean): Integer;
const
SO_REUSEPORT = 15;
var
LOptVal: Integer;
begin
if AReReUsePort then
LOptVal := 1
else
LOptVal := 0;
Result := TSocketAPI.SetSockOpt(ASocket, SOL_SOCKET, SO_REUSEPORT, LOptVal, SizeOf(Integer));
end;

[winddriver]

抱歉，现在才改，已经更新了