Ability to convert Ember.Evented usage

Ability to replace Ember.Evented with an comparable API would be great. Example:

Current

// app/services/foo.js
import Evented from '@ember/object/evented';
export default Service.extend(Evented, {
  triggerEvent() {
    this.trigger('someEvent');
  }
});

// app/components/foo-bar.js
export default Component.extend({
  foo: service(),

  init() {
    this._super(...arguments);
    this.get('foo').on('someEvent', () => alert('called'))
  }
})

Desired

I think a good way to do this would be to add trigger to the ContextBoundEventListenersMixin, so that it can be mixed into any object and can trigger events and register listeners.

// app/services/foo.js
import { ContextBoundEventListenersMixin } from 'ember-lifeline';

export default Service.extend(ContextBoundEventListenersMixin, {
  triggerEvent() {
    this.trigger('someEvent');
  }
});

// app/components/foo-bar.js
import { addEventListener, runDisposables } from 'ember-lifeline';
export default EmberObject.extend({
  foo: service(),

  init() {
    this._super(...arguments);
    addEventListener(this, this.get('foo'), 'someEvent', () => alert('called'));
  }

  willDestroy() {
    runDisposables(this);
  }
})

Thoughts?

[mehulkar]

Something explicit in the readme would be ok too. I think using registerDisposable is a fine way to convert usage.

[scalvert]

Just doing a bit of cleanup on issues in this repo. If this issue is closed in error please reopen!