Summary:
Move configuration to new ```YGConfig``` and pass them down to CalculateLayout. See #418 .
Adds ```YGConfigNew()``` + ```YGConfigFree```, and changed ```YGSetExperimentalFeatureEnabled``` to use the config.
New function for calculation is ```YGNodeCalculateLayoutWithConfig```.
Closes https://github.com/facebook/yoga/pull/432
Reviewed By: astreet
Differential Revision: D4611359
Pulled By: emilsjolander
fbshipit-source-id: a1332f0e1b21cec02129dd021ee57408449e10b0
Summary: For percentage paddings/margins/sizes to work on the root node we need to have the ability to pass down the parent sizes. This has always been possible with the C API but was never exposed to java. This diff exposes this functionality.
Reviewed By: astreet
Differential Revision: D4501016
fbshipit-source-id: 0c9502e86ff200c021c78afb7ac4b48cf11b3bdb
