Add RNTester example for multi-line interleaved <View> and <Text> (#28242)
Add RNTester example for multi-line interleaved <View> and <Text> (#28242)

Summary:
Currently, using `alignSelf: "baseline"` on a `<View>` nested in a `<Text>` fails to position the view properly. Using `alignItems: "baseline"` on the parent `<Text>` doesn't work either.

/cc shergin

### Current Result
![rn-baseline-nested-view](https://user-images.githubusercontent.com/1925840/76032574-29918080-5f08-11ea-8ee8-cf3106ef0e06.jpg)

### Expected Result
![rn-baseline-nested-text](https://user-images.githubusercontent.com/1925840/76032575-2a2a1700-5f08-11ea-9efa-4026bc824ed5.jpg)
Pull Request resolved: https://github.com/facebook/react-native/pull/28242

Reviewed By: PeteTheHeat

Differential Revision: D20308202

Pulled By: shergin

fbshipit-source-id: adb75b763db1c3e879cb90d469a80ee8262a3609

janicduplessis/react-native,arthuralee/react-native,hoangpham95/react-native,hoangpham95/react-native,myntra/react-native,arthuralee/react-native,myntra/react-native,javache/react-native,exponent/react-native,janicduplessis/react-native,pandiaraj44/react-native,pandiaraj44/react-native,exponentjs/react-native,exponent/react-native,exponentjs/react-native,javache/react-native,exponentjs/react-native,pandiaraj44/react-native,janicduplessis/react-native,myntra/react-native,hammerandchisel/react-native,exponentjs/react-native,facebook/react-native,exponent/react-native,javache/react-native,myntra/react-native,pandiaraj44/react-native,pandiaraj44/react-native,myntra/react-native,exponentjs/react-native,hoangpham95/react-native,janicduplessis/react-native,arthuralee/react-native,exponentjs/react-native,hammerandchisel/react-native,facebook/react-native,hoangpham95/react-native,pandiaraj44/react-native,arthuralee/react-native,exponent/react-native,javache/react-native,exponent/react-native,janicduplessis/react-native,hammerandchisel/react-native,arthuralee/react-native,facebook/react-native,hoangpham95/react-native,pandiaraj44/react-native,myntra/react-native,facebook/react-native,facebook/react-native,myntra/react-native,hoangpham95/react-native,hammerandchisel/react-native,javache/react-native,janicduplessis/react-native,facebook/react-native,hammerandchisel/react-native,exponent/react-native,facebook/react-native,janicduplessis/react-native,hammerandchisel/react-native,exponent/react-native,javache/react-native,myntra/react-native,myntra/react-native,exponentjs/react-native,facebook/react-native,hammerandchisel/react-native,facebook/react-native,hoangpham95/react-native,hammerandchisel/react-native,janicduplessis/react-native,hoangpham95/react-native,javache/react-native,pandiaraj44/react-native,javache/react-native,exponentjs/react-native,exponent/react-native,javache/react-native