FieldSerializer: do not ignore final fields. (#1505)

jme3-networking/src/main/java/com/jme3/network/serializing/serializers/FieldSerializer.java

@@ -98,7 +98,6 @@ public class FieldSerializer extends Serializer {
         for (Field field : fields) {
             int modifiers = field.getModifiers();
             if (Modifier.isTransient(modifiers)) continue;
-            if (Modifier.isFinal(modifiers)) continue;
             if (Modifier.isStatic(modifiers)) continue;
             if (field.isSynthetic()) continue;
             field.setAccessible(true);