Summary:
Related to: #15454
Motivation: Improve tvOS feeling for TouchableHighlight

- When you select the button he is focus and the underlay is show
- When you press the button, there is an animation, but after the animation, the focus is on the button and the underlay is show
Play with tvParallaxProperties on tvOS, test with and without patch just to see the actual behaviour
```
<TouchableHighlight
tvParallaxProperties={{
enabled: true,
shiftDistanceX: 0,
shiftDistanceY: 0,
tiltAngle: 0,
magnification: 1.1,
pressMagnification: 1.0,
pressDuration: 0.3,
}}
underlayColor="black"
onShowUnderlay={() => (console.log("onShowUnderlay")}
onHideUnderlay={() => (console.log("onHideUnderlay")}
onPress={() => (console.log("onPress")}
>
<Image
style={styles.image}
source={ uri: 'https://www.facebook.com/images/fb_icon_325x325.png' }
/>
</TouchableHighlight>
```
Closes https://github.com/facebook/react-native/pull/15455
Differential Revision: D6887437
Pulled By: hramos
fbshipit-source-id: e18b695068bc99643ba4006fb3f39215b38a74c1
Summary:
It is not itemPositoning it is itemPositioning
I have test it on iOS and tvOS
Closes https://github.com/facebook/react-native/pull/15426
Differential Revision: D5591807
Pulled By: javache
fbshipit-source-id: 0ad0bc32012c63f93f6b1528cae46c6dcba56706