Rename reset() -> free() to be more in line with what it now does

Summary: Rename reset() -> free() to be more in line with what it now does as the default implementation is JNI

Reviewed By: lucasr

Differential Revision: D3992808

fbshipit-source-id: 8428ae33268d1417ce8642b741e47150a17bf077

java/com/facebook/csslayout/CSSNodeAPI.java

@@ -90,5 +90,5 @@ public interface CSSNodeAPI<CSSNodeType extends CSSNodeAPI> {
   void setData(Object data);
   Object getData();
   void init();
-  void reset();
+  void free();
 }