NFM demod: save CTCSS settings

Readme.md

@@ -106,7 +106,7 @@ Done since the fork
   - Corrected the nasty audio band resampling bug preventing use of sample rates that are not power of 2 multiples of 48kHz. This was because the resampling ratio was calculated with an integer division instead of a float division. 
   - As a consequence of the above added more interesting values for the available sampling rates of the BladeRF plugin
   - Variable span for the SSB demod down to 1.5 kHz
-  - Filter out CTCSS tones in NFMDemod
+  - Filter out CTCSS tones for audio and full CTCSS support in NFMDemod
     
 =====
 To Do

plugins/channel/nfm/nfmdemodgui.cpp

@@ -58,6 +58,7 @@ QByteArray NFMDemodGUI::serialize() const
 	s.writeS32(5, ui->squelch->value());
 	//s.writeBlob(6, ui->spectrumGUI->serialize());
 	s.writeU32(7, m_channelMarker->getColor().rgb());
+	s.writeS32(8, ui->ctcss->currentIndex());
 	return s.final();
 }
 
@@ -88,6 +89,8 @@ bool NFMDemodGUI::deserialize(const QByteArray& data)
 		//ui->spectrumGUI->deserialize(bytetmp);
 		if(d.readU32(7, &u32tmp))
 			m_channelMarker->setColor(u32tmp);
+		d.readS32(8, &tmp, 0);
+		ui->ctcss->setCurrentIndex(tmp);
 		applySettings();
 		return true;
 	} else {