Kureev Alexey b4992efca9 Add disabled TouchableNativeFeedback button example
Summary:Follow-up PR for #5931: Adding missing `TouchableNativeFeedback` example.

**Test plan**

- Run UIExplorer on iOS and Android devices

[Android]
- Go to Touchable* examples and scroll down to the `Disabled Touchable*` section. There are two new buttons there: `Enabled TouchableNativeFeedback` and `Disabled TouchableNativeFeedback`. Buttons should behave according their titles.

[iOS]
- Go to Touchable* examples and scroll down to the `Disabled Touchable*` section. As far as `TouchableNativeFeedback` is supported on Android only, you **wouldn't see** any new buttons there

**Code formatting**

This PR code style match the desired [style guide](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#style-guide).

cc mkonicek
Closes https://github.com/facebook/react-native/pull/6123

Differential Revision: D2971021

fb-gh-sync-id: 3be18bda15b5b495caaf9e4444fd0deb47a44839
shipit-source-id: 3be18bda15b5b495caaf9e4444fd0deb47a44839
2016-02-24 05:26:33 -08:00
..
2015-12-15 09:09:32 -08:00