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/module/decode/fleetsync2/identifier/FleetsyncIdentifier.java

@@ -87,4 +87,10 @@ public class FleetsyncIdentifier extends TalkgroupIdentifier implements Comparab
     {
         return getValue().compareTo(o.getValue());
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof FleetsyncIdentifier)) return false;
+        return compareTo((FleetsyncIdentifier) o) == 0;
+    }
 }