Merge pull request #1 in ECOM-TOOLS/ecom-tools-dw-api-mock from featu…

…re/ngcatalog-api-mock-isvariationgroup to master

* commit '00326a8743421778fbad6498cf8e607d607c40d8':
  dw.catalog.Product.isVariationGroup() method added

dw/catalog/Product.js

@@ -65,6 +65,7 @@ Product.prototype.isMaster = function(){};
 Product.prototype.isBundle = function(){};
 Product.prototype.isBundled = function(){};
 Product.prototype.isVariant = function(){};
+Product.prototype.isVariationGroup = function(){};
 Product.prototype.includedInBundle = function(){};
 Product.prototype.getBundledProductQuantity = function(){};
 Product.prototype.getBundledProducts = function(){};
@@ -152,4 +153,4 @@ Product.prototype.availabilityModel=null;
 Product.prototype.allRecommendations=null;
 Product.prototype.activeData=null;
 
-module.exports = Product;
+module.exports = Product;