Summary:
iOS did not support the implementation of Korean word-wrap(line-break) before iOS14.
If the attribute applied, the word-wrap of Korean will works.
## Changelog
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[iOS] [Added] - Line break strategy for Text and TextInput components
Pull Request resolved: https://github.com/facebook/react-native/pull/31272
Test Plan:
1. Test build and run on above iOS 14.
2. Test it does not affect existing text components when set default(none) strategy.
3. Test whether word-wrap works with Korean when set hangul-word strategy.
<img src="https://user-images.githubusercontent.com/26326015/112963967-d7f70c00-9182-11eb-9a34-8c758b80c219.png" width="300" height="" style="max-width:100%;">
Reviewed By: javache
Differential Revision: D39824809
Pulled By: lunaleaps
fbshipit-source-id: 42cb0385221a38c84e80d3494d1bfc1934ecf32b