Move module-related global declares to a separate file.

module.d.ts

@@ -0,0 +1,13 @@
+//Base module declarations
+//Not required in Angular apps since it clashes with its typings.
+declare var global: any;
+
+interface NativeScriptRequire {
+    (id: string): any;
+}
+
+declare interface NativeScriptModule {
+    id: string;
+    filename: string;
+    exports: any;
+}