add setFlexBasisAuto (#1112)

Summary:
fix https://github.com/facebook/yoga/issues/766

is it possible to compile yoga and release the fix? Or javascript part of yoga is not maintained?

Pull Request resolved: https://github.com/facebook/yoga/pull/1112

Reviewed By: yungsters

Differential Revision: D40026371

Pulled By: NickGerleman

fbshipit-source-id: c2f3b18e2d3951338ce37cd3a319249996dd8a2e

javascript/sources/nbind.cc

@@ -70,6 +70,7 @@ NBIND_CLASS(Node) {
   method(setFlex);
   method(setFlexBasis);
   method(setFlexBasisPercent);
+  method(setFlexBasisAuto);
   method(setFlexGrow);
   method(setFlexShrink);