feat(script): Set ngModule to Closure namespace.

[wesalvaro]

When using Closure, it is common to reference Angular module dependencies by the name property of the module.
This looks like:

goog.provide('bar.module');
goog.require('foo.module');
bar.module = angular.module('bar.module', [foo.module.name]);

This change makes it possible for this kind of reference instead of having to refer to the dependent module as a string.

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[googlebot]

CLAs look good, thanks!

[jelbourn]

Look good to me.