P25 LSM decoder work in progress. Adds a CQPSK decoder based on Max's (KA1RBI) scope.py and gardner loop.

The CQPSK decoder is starting to take shape, but needs more tweaking and testing.  It's not keeping a good lock on strong P25 signals.  I have to add some more features to the intrumentation package to allow me to visualize the internals of the CQPSK decoder so that I can get a better sense of what needs fine tuning.

The CQPSK decoder may work for anyone that wants to sync the repo and run the build script.

src/instrument/tap/stream/BinaryTapViewPanel.java

@@ -32,6 +32,8 @@ import java.util.Observable;
 
 public class BinaryTapViewPanel extends TapViewPanel
 {
+	private static final long serialVersionUID = 1L;
+	
 	private Tap mTap;
 	private List<Boolean> mSamples;
 	private int mSampleCount;