Move files in anticipation of move to modular system

src/main/java/old/Transducer.java

@@ -0,0 +1,16 @@
+package old;
+
+import sound.Consumer;
+import sound.Producer;
+
+public abstract class Transducer implements Consumer, Producer {
+    public int rate;
+
+    public Transducer(Producer producer) {
+        //setProducer(producer);
+    }
+
+    public int getRate() {
+        return rate;
+    }
+}