Draft for searchMapPlaceController + bugfix

[roisnir]

About issue #14 this is the quick solution that I used in my project. What do you think?
If this direction is good we can improve it, write it better or even check how other controllers are implemented.

The second commit fixes an error the appears after the widget is disposed and the custom listener keeps running.

@Bernardi23 what do you think?

[Bernardi23]

I'll take a look. But I'm doing a pretty important commit tonight that fixes a lot of stuff, therefore this will probably have some conflicts.

Even though my commit doesn't solve #14, it makes the UX a lot better, since it allows the user to close the Box by hitting the "Submit" button on the keyboard.

[Bernardi23]

I pushed the new update yesterday. Check it out and see if you can add this feature on it.

[rubensdemelo]

@Bernardi23 com este fix e55e9d6 é possível retornar o Place selecionado para outra tela. É possível priorizá-lo ?