add index file to authentication/azureTokenCredentials and authentication/msal-browser paths

Author: Geoffrey Koros

.gitignore

@@ -31,5 +31,6 @@ test/development/secrets.ts
 .idea/*
 
 testResult.xml
+test-results.xml
 
 test-esm/lib/*

package-lock.json

@@ -1,6 +1,6 @@
 {
     "name": "@microsoft/microsoft-graph-client",
-    "version": "3.0.0-Preview.3",
+    "version": "3.0.0-Preview.4",
     "description": "Microsoft Graph Client Library",
     "keywords": [
         "Microsoft",

package.json

@@ -0,0 +1,8 @@
+/**
+ * -------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.
+ * See License in the project root for license information.
+ * -------------------------------------------------------------------------------------------
+ */
+export { TokenCredentialAuthenticationProviderOptions } from "./ITokenCredentialAuthenticationProviderOptions";
+export { TokenCredentialAuthenticationProvider } from "./TokenCredentialAuthenticationProvider";

src/authentication/azureTokenCredentials/index.ts

@@ -0,0 +1,7 @@
+/**
+ * -------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.
+ * See License in the project root for license information.
+ * -------------------------------------------------------------------------------------------
+ */
+export { AuthCodeMSALBrowserAuthenticationProvider } from "./AuthCodeMSALBrowserAuthenticationProvider";