Documentation only, no functional change

Added copyrights and comments within headers

Change-Id: Iebb17ba34b82a6c80718ad32338105a5245e640c
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/src/functor.cpp b/src/functor.cpp
index f4d2574..72ff65e 100644
--- a/src/functor.cpp
+++ b/src/functor.cpp
@@ -1,3 +1,18 @@
+/**
+ * Copyright © 2017 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #include "functor.hpp"
 #include <sdbusplus/bus.hpp>
 #include <sdbusplus/message.hpp>