add AlexNet

paddlex/cv/nets/alexnet.py

@@ -1,4 +1,4 @@
-#copyright (c) 2019 PaddlePaddle Authors. All Rights Reserve.
+#copyright (c) 2020 PaddlePaddle Authors. All Rights Reserve.
 #
 #Licensed under the Apache License, Version 2.0 (the "License");
 #you may not use this file except in compliance with the License.