DI-DO save/load workspace bug fix

[Yunusbcr]

This,

rtxi/src/main_window.cpp

Line 642 in 8608459

tmp_device->setActive(userprefs.value("active").value<bool>());

should be this

      tmp_device->setChannelActive(DAQ::ChannelType::DI,
                                   current_channel_id,
                                   userprefs.value("active").value<bool>());

and this,

rtxi/src/main_window.cpp

Lines 649 to 650 in 8608459

	userprefs.beginGroup(channel_name);
	tmp_device->setActive(userprefs.value("active").value<bool>());

should be this,

      userprefs.beginGroup(channel_id);
      tmp_device->setChannelActive(DAQ::ChannelType::DO,
                                   current_channel_id,
                                   userprefs.value("active").value<bool>());

[Yunusbcr]

fixed in #191