Add ability to set global cache defaults in $angularCacheFactoryProvider

[jmdobry]

In an app module's config() method where service providers are configured, add the ability to configure the $angularCacheFactoryProvider. The first configuration option that will be available will be the ability to configure global defaults for all caches produced by $angularCacheFactory. For example: if I want all of my caches to have a capacity of 1000, I could do:

app.module('myApp', ['jmdobry.angular-cache'])
    .config(function ($angularCacheFactoryProvider) {
        $angularCacheFactoryProvider.setCacheDefaults({
            capacity: 1000
        });
    })
    .run(function ($angularCacheFactory) {
        $angularCacheFactory('newCache').info().capacity; // 1000
    });