NFP - Device Orchestrator implementation

Device Orchestrator keeps track of devices, addition/removal of
new devices. Service Orchestrator sends device realted request
to Device Orchestrator.

Change-Id: Ic1302487eee80ee00f452c18b89fe0a6a49ec5aa
Implements: blueprint gbp-network-services-framework
Co-Authored-By: Yogesh Rajmane <yogesh.rajmane@oneconvergence.com>
Co-Authored-By: Akash Deep <akash.deep@oneconvergence.com>
(cherry picked from commit d7926a42a4)
(cherry picked from commit 22b6e2f502)

gbpservice/nfp/orchestrator/drivers/orchestration_driver.py

@@ -0,0 +1,17 @@
+#    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.
+
+
+class OrchestrationDriver(object):
+
+    def __init__(self, config):
+        pass