Added data on charts.

Author: kevzlou7979

src/main/java/gwt/material/design/amcore/client/base/Container.java

@@ -39,6 +39,9 @@ public class Container extends Sprite {
     @JsProperty
     public List<Sprite> children;
 
+    @JsProperty
+    public Object data;
+
     /**
      * @see Align
      */