Edited Issue: Provide overload to supply entitysetconfiguration while defining action return type [617]

It would be convenient for users if we provide overload for "ReturnsCollectionFromEntitySet" and "ReturnsFromEntitySet" methods where they can specify an entitysetconfiguration, if they have already defined it.<br /><br />Instead of this:<br />var productsByCategories = builder.EntitySet<Products_by_Category>("ProductsByCategories");<br />productsByCategories.EntityType.HasKey(rec => rec.CategoryName);<br /><br />var getProductsByCategories = categories.EntityType.Action("GetProductsByCategory");<br />getProductsByCategories.ReturnsCollectionFromEntitySet<Products_by_Category>("ProductsByCategories");<br /><br />something like this:<br />var productsByCategories = builder.EntitySet<Products_by_Category>("ProductsByCategories");<br />productsByCategories.EntityType.HasKey(rec => rec.CategoryName);<br /><br />var getProductsByCategories = categories.EntityType.Action("GetProductsByCategory");<br />getProductsByCategories.ReturnsCollectionFromEntitySet(productsByCategories); //<-------------------Here<br /><br />