[WIP] Updates the LTR-Standard and LTR-Net decoders to use a new LTR

decoder with a zero-crossing symbol timing error detector.  The new
decoder is optimized for 8 kHz FM demodulated audio produced by the
AudioModule.

src/main/java/io/github/dsheirer/source/wave/ComplexWaveSource.java

@@ -34,7 +34,7 @@ import java.io.File;
 import java.io.IOException;
 import java.util.Arrays;
 
-public class ComplexWaveSource extends ComplexSource implements IControllableFileSource
+public class ComplexWaveSource extends ComplexSource implements IControllableFileSource, AutoCloseable
 {
     private final static Logger mLog = LoggerFactory.getLogger(ComplexWaveSource.class);
 
@@ -275,4 +275,26 @@ public class ComplexWaveSource extends ComplexSource implements IControllableFil
     {
         mFrameLocationListener = null;
     }
+
+    /**
+     * Indicates if the file is a supported audio file type
+     */
+    public static boolean supports(File file)
+    {
+        try(AudioInputStream ais = AudioSystem.getAudioInputStream(file))
+        {
+            AudioFormat format = ais.getFormat();
+
+            if(format.getChannels() == 2 && format.getSampleSizeInBits() == 16)
+            {
+                return true;
+            }
+        }
+        catch(Exception e)
+        {
+            //Do nothing, we'll return a default of false
+        }
+
+        return false;
+    }
 }