Summary:
Changelog: [internal]
layoutDirectionPass down layoutDirection from `RCTSurfacePresenter` down to `YogaLayutableShadowNode`.
In `ParagraphShadowNode`, we propagate layoutDirection from yoga node to `TextAttributes.layoutDirection`.
Reviewed By: shergin
Differential Revision: D20420041
fbshipit-source-id: 86e01d31ea9415acb8579c44c470cac870ec1b8f