Missing a way to verify/click on AutoCompleteTextView suggestions

Thanks for the great lib!

I'd like to verify the item is displayed in dropdown list when user types some text in AutoCompleteTextView. To do so in Espresso I can use the following approach:
```
onView(withText("Maine Coon"))
.inRoot(withDecorView(not(`is`(viewTestRule.activity.getWindow().getDecorView()))))
.check(matches(isDisplayed()));
```
and to click on the item from dropdown list:
```
onView(withText("Manx")).inRoot(withDecorView(not(`is`(viewTestRule.activity.getWindow().getDecorView()))))
.perform(click());

```

Do you think the library should provide similar functionality? Via separate API or using existing methods `assertDisplayed()` and `clickOn()`?