Updates branch master with sol006 branch, introducing new SOL006 model classes

Change-Id: Ica385dd2e44a0e72561b450554f7fa9e450f08c9
Signed-off-by: garciaale <agarcia@whitestack.com>
diff --git a/models/augments/mgmt-interface.yang b/models/augments/mgmt-interface.yang
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+++ b/models/augments/mgmt-interface.yang
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+/*
+  Copyright 2020 Whitestack LLC
+
+  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.
+*/
+
+module mgmt-interface {
+    yang-version 1.1;
+    namespace "urn:etsi:osm:yang:augments:mgmt-interface";
+    prefix "mgmt-interface";
+
+    import etsi-nfv-vnfd {
+        prefix vnfd;
+    }
+
+    grouping extended-mgmt-interface {
+        leaf mgmt-cp {
+            description
+              "Connection point over which the VNF is managed.";
+            type leafref {
+                path "/vnfd:vnfd/vnfd:ext-cpd/vnfd:id";
+            }
+        }
+    }
+
+    augment "/vnfd:vnfd" {
+        uses extended-mgmt-interface;
+    }
+}
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