1. Changed property value param to accept array of strings in select,

expand, orderby methods.
2. Fixed compilation error by adding required libraries in config.

Author: muthurathinam-m

lib/graph-js-sdk-web.js

@@ -0,0 +1 @@
+export {};

lib/spec/core/responseHandling.d.ts

@@ -0,0 +1 @@
+export {};

lib/spec/core/urlGeneration.d.ts

@@ -0,0 +1 @@
+export {};

lib/spec/core/urlGeneration.js.map

@@ -16,9 +16,9 @@ export declare class GraphRequest {
     private urlJoin(urlSegments);
     buildFullUrl(): string;
     version(v: string): GraphRequest;
-    select(properties: string | [string]): GraphRequest;
-    expand(properties: string | [string]): GraphRequest;
-    orderby(properties: string | [string]): GraphRequest;
+    select(properties: string | string[]): GraphRequest;
+    expand(properties: string | string[]): GraphRequest;
+    orderby(properties: string | string[]): GraphRequest;
     filter(filterStr: string): GraphRequest;
     top(n: number): GraphRequest;
     skip(n: number): GraphRequest;