Daydream support

[dmarcos]

The position of the gun is much better now 🔫

[cvan]

@fernandojsg I just tested this locally, and now I can't seem to be able to shoot. the controller doesn't show up and pressing the Daydream controller's primary button isn't working for me.

[cvan]

it may be just my controller not working. testing that now.

https://webvr.info/samples/XX-vr-controllers.html and https://aframe.io/aframe/examples/showcase/tracked-controls/ best to test with?

[cvan]

1. https://aframe.io/a-blast/ – I see the gun on the ground, and moving my controller doesn't affect that
2. https://webvr.info/samples/XX-vr-controllers.html – works correctly with my Daydream controller
3. https://aframe.io/aframe/examples/showcase/tracked-controls/ – doesn't work with Daydream controller, but I don't see it using Daydream controls, nor in the grab component

[dmarcos]

The canonical example is : https://aframe.io/aframe/examples/test/laser-controls/

[fernandojsg]

@cvan could you give it a try on master? I've just updated a bug with an event, and I've tried both on vive and on daydream and works as expected.

[cvan]

@fernandojsg see issue #126 I filed. it could be the same issue or Gear VR-specific. thanks!