Move configuration to new YGConfig and pass them down to CalculateLayout

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 facebook/yoga#432

Reviewed By: astreet

Differential Revision: D4611359

Pulled By: emilsjolander

fbshipit-source-id: a1332f0e1b21cec02129dd021ee57408449e10b0

src/main/java/com/facebook/components/ComponentsPools.java

@@ -23,6 +23,7 @@
 
 import com.facebook.components.config.ComponentsConfiguration;
 import com.facebook.components.displaylist.DisplayList;
+import com.facebook.yoga.YogaConfig;
 import com.facebook.yoga.YogaDirection;
 import com.facebook.yoga.YogaExperimentalFeature;
 import com.facebook.yoga.YogaNode;
@@ -41,6 +42,8 @@
  */
 public class ComponentsPools {
 
+  private static YogaConfig sYogaConfig;
+
   private static final int SCRAP_ARRAY_INITIAL_SIZE = 4;
 
   private ComponentsPools() {
@@ -175,13 +178,16 @@ static synchronized YogaNodeAPI acquireYogaNode() {
         } catch (UnsatisfiedLinkError ule) {
           // Fallback to yoga Node when ReNode is not availiable
           sShouldUseRelayout = false;
-          YogaNode.setExperimentalFeatureEnabled(YogaExperimentalFeature.ROUNDING, true);
           node = new YogaNode();
         }
 
       } else if (sShouldUseCSSNodeJNI) {
-        YogaNode.setExperimentalFeatureEnabled(YogaExperimentalFeature.ROUNDING, true);
-        node = new YogaNode();
+        if (sYogaConfig == null) {
+          sYogaConfig = new YogaConfig();
+          sYogaConfig.setExperimentalFeatureEnabled(YogaExperimentalFeature.ROUNDING, true);
+        }
+
+        node = new YogaNode(sYogaConfig);
       } else {
         node = new CSSNodeDEPRECATED();
       }