Add copywright header to all eslint test project .eslintrc.js files

Author: D4N14L

build-tests/eslint-7-11-test/.eslintrc.js

@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 // This is a workaround for https://github.com/eslint/eslint/issues/3458
 require('local-node-rig/profiles/default/includes/eslint/patch/modern-module-resolution');
 // This is a workaround for https://github.com/microsoft/rushstack/issues/3021

build-tests/eslint-7-7-test/.eslintrc.js

@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 // This is a workaround for https://github.com/eslint/eslint/issues/3458
 require('local-node-rig/profiles/default/includes/eslint/patch/modern-module-resolution');
 // This is a workaround for https://github.com/microsoft/rushstack/issues/3021

build-tests/eslint-7-test/.eslintrc.js

@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 // This is a workaround for https://github.com/eslint/eslint/issues/3458
 require('local-node-rig/profiles/default/includes/eslint/patch/modern-module-resolution');
 // This is a workaround for https://github.com/microsoft/rushstack/issues/3021

build-tests/eslint-8-test/.eslintrc.js

@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
+// See LICENSE in the project root for license information.
+
 // This is a workaround for https://github.com/eslint/eslint/issues/3458
 require('local-node-rig/profiles/default/includes/eslint/patch/modern-module-resolution');
 // This is a workaround for https://github.com/microsoft/rushstack/issues/3021