Add PBandGraphOauth scaffold and auth UI

node_modules/@microsoft/microsoft-graph-client/shims.d.ts

@@ -0,0 +1,23 @@
+/**
+ * -------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the MIT License.
+ * See License in the project root for license information.
+ * -------------------------------------------------------------------------------------------
+ */
+
+/**
+ * Shim for Node stream interface.
+ */
+interface NodeStream {
+    /**
+     * Shim for Node stream interface when the environment does not use @types/node.
+     * Using @types/node appends the ambient Node definition to the global scope which is not desirable.
+     * https://github.com/microsoftgraph/msgraph-sdk-javascript/issues/600
+     */
+    readable: boolean;
+    readableLength: number;
+    read(size?: number): any;
+    on(event: string | symbol, listener: (...args: any[]) => void): this;
+}
+
+interface Headers{}