Fix some minor bugs (#745)

* Include other member variables in copy constructor

* Add break to switch cases

* Implement equals() in classes extending Comparable

If equals() is not overridden, the equals() implementation is not consistent
with the compareTo() implementation. If an object of such a class is added
to a collection such as java.util.SortedSet, this collection will violate
the contract of java.util.Set, which is defined in terms of equals().

Co-authored-by: Rob Ekl <xwq876@zebra.com>

src/main/java/io/github/dsheirer/audio/broadcast/BroadcastModel.java

@@ -538,6 +538,7 @@ public class BroadcastModel extends AbstractTableModel implements Listener<Audio
                             {
                                 return BroadcastState.INVALID_SETTINGS;
                             }
+                            break;
                         case COLUMN_BROADCASTER_QUEUE_SIZE:
                             AudioBroadcaster audioBroadcasterB = mBroadcasterMap.get(configuration.getName());