#296 APCO25 Phase II Decoder Implementation (#589)

P25 Phase 2 Decoder implementation.

src/main/java/io/github/dsheirer/source/SourceEvent.java

@@ -36,6 +36,7 @@ public class SourceEvent
         NOTIFICATION_FREQUENCY_ROTATION_FAILURE,
         NOTIFICATION_MEASURED_FREQUENCY_ERROR,
         NOTIFICATION_MEASURED_FREQUENCY_ERROR_SYNC_LOCKED,
+        NOTIFICATION_RECORDING_FILE_LOADED,
         NOTIFICATION_SAMPLE_RATE_CHANGE,
         NOTIFICATION_STOP_SAMPLE_STREAM,
 
@@ -276,6 +277,14 @@ public class SourceEvent
         return new SourceEvent(Event.NOTIFICATION_CHANNEL_SAMPLE_RATE_CHANGE, sampleRate);
     }
 
+    /**
+     * Notification that a baseband recording file has been loaded
+     */
+    public static SourceEvent recordingFileLoaded()
+    {
+        return new SourceEvent(Event.NOTIFICATION_RECORDING_FILE_LOADED);
+    }
+
     /**
      * Creates a new channel count change event
      *