Show respect to original authors

We copied some codes/frameworks from Nova, but frogot to add
the original file informations, this tries to add them back.

Change-Id: I310d94fc334b6e72dc5eafa316f1b4842066ccbe

mogan/baremetal/ironic/driver.py

@@ -1,4 +1,6 @@
 # Copyright 2016 Huawei Technologies Co.,LTD.
+# Copyright 2014 Red Hat, Inc.
+# Copyright 2013 Hewlett-Packard Development Company, L.P.
 # All Rights Reserved.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
@@ -13,6 +15,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/virt/ironic/driver.py
+'''
+
 import collections
 
 from ironicclient import exc as ironic_exc

mogan/console/websocketproxy.py

@@ -14,7 +14,7 @@
 #    under the License.
 
 '''
-Websocket proxy that is compatible with OpenStack Mogan.
+Websocket proxy that is based on websocketproxy.py from Nova.
 Leverages websockify.py by Joel Martin
 '''
 

mogan/consoleauth/manager.py

@@ -13,6 +13,10 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
+'''
+Leverages nova/consoleauth/manager.py
+'''
+
 """Auth Components for Consoles."""
 
 import time

mogan/engine/configdrive.py

@@ -13,6 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/virt/configdrive.py by Michael Still
+'''
+
 """Config Drive v2 helper."""
 
 import os

mogan/engine/metadata.py

@@ -14,6 +14,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/api/metadata.py
+'''
+
 """Server Metadata information."""
 
 import posixpath

mogan/network/api.py

@@ -1,3 +1,7 @@
+# Copyright 2012 OpenStack Foundation
+# All Rights Reserved
+# Copyright (c) 2012 NEC 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
@@ -10,6 +14,10 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+'''
+Leverages nova/network/neutronv2/api.py
+'''
+
 from neutronclient.common import exceptions as neutron_exceptions
 from neutronclient.v2_0 import client as clientv20
 from oslo_log import log as logging

mogan/objects/aggregate.py

@@ -1,6 +1,6 @@
-# Copyright 2017 Huawei Technologies Co.,LTD.
+#    Copyright 2017 Huawei Technologies Co.,LTD.
-# All Rights Reserved.
+#    Copyright 2013 IBM Corp.
-#
+
 #    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
@@ -13,6 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/objects/aggregate.py
+'''
+
 from oslo_versionedobjects import base as object_base
 
 from mogan.db import api as dbapi

mogan/objects/keypair.py

@@ -1,4 +1,5 @@
-# Copyright 2017 Huawei Technologies Co.,LTD.
+#    Copyright 2017 Huawei Technologies Co.,LTD.
+#    Copyright 2013 IBM Corp.
 #
 #    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
@@ -12,6 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/objects/keypair.py
+'''
 
 from oslo_versionedobjects import base as object_base
 

mogan/objects/server_fault.py

@@ -1,6 +1,5 @@
-# Copyright 2017 Intel
+#    Copyright 2017 Intel.
-# All Rights Reserved.
+#    Copyright 2013 IBM Corp.
-#
 #
 #    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
@@ -14,6 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/objects/instance_fault.py
+'''
+
 import itertools
 
 from oslo_versionedobjects import base as object_base

mogan/objects/server_group.py

@@ -1,6 +1,5 @@
-# Copyright 2017 Huawei Technologies Co.,LTD.
+#    Copyright 2017 Huawei Technologies Co.,LTD.
-# All Rights Reserved.
+#    Copyright (c) 2013 OpenStack Foundation
-#
 #
 #    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
@@ -14,6 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/objects/instance_group.py
+'''
+
 from oslo_log import log as logging
 from oslo_versionedobjects import base as object_base
 

mogan/scheduler/client/report.py

@@ -13,6 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/scheduler/client/report.py
+'''
+
 import functools
 import re
 import time

mogan/scheduler/filter_scheduler.py

@@ -1,3 +1,6 @@
+# Copyright (c) 2011 OpenStack Foundation
+# All Rights Reserved.
+#
 #    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
@@ -10,6 +13,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+'''
+Leverages nova/scheduler/filter_scheduler.py
+'''
+
 """The FilterScheduler is for creating servers.
 
 You can customize this scheduler by specifying your own node Filters and