alias-model-in-controller: allow nested properties

[buschtoens]

Fixes #79.

You can now do this:

 const { reads } = Ember.computed;
 export default Ember.Controller.extend({
   people: reads('model.people'),
   pets:   reads('model.pets')
 });

[michalsnik]

Looks good :)

[michalsnik]

Thanks for your contribution @buschtoens! I'll try to release it tomorrow :)

[catz]

Nice change! Waiting for the new release.

[jguitar]

👍 And also waiting for the new release

[michalsnik]

@jguitar @catz @buschtoens Sorry for such late action with this one, here's the new release: https://github.com/netguru/eslint-plugin-ember/releases/tag/v3.5.0