chore: add missing copyright header.

Author: tjholm

packages/plugins/azure/src/resources/principal.ts

@@ -1,3 +1,17 @@
+// Copyright 2021, Nitric Technologies Pty Ltd.
+//
+// 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.
+
 import * as azuread from '@pulumi/azuread';
 //import * as random from '@pulumi/random';
 import * as azure from '@pulumi/azure-native';