MC-172: [Visual Merchandiser] Admin should be able to mass assign products to category by SKU

- added MFTF test

(cherry picked from commit 9a58e19)

Author: jilu1

dev/tests/acceptance/tests/functional/Magento/FunctionalTest/Catalog/Page/AdminCategoryEditPage.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<pages xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="../../../../../../vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/Page/etc/PageObject.xsd">
+    <page name="AdminCategoryEditPage" url="catalog/category/edit/id/{{categoryId}}/" area="admin" module="Catalog" parameterized="true">
+        <section name="AdminCategorySidebarActionSection"/>
+        <section name="AdminCategoryMainActionsSection"/>
+        <section name="AdminCategorySidebarTreeSection"/>
+        <section name="AdminCategoryBasicFieldSection"/>
+        <section name="AdminCategorySEOSection"/>
+        <section name="AdminCategoryProductsSection"/>
+        <section name="AdminCategoryProductsGridSection"/>
+        <section name="AdminCategoryModalSection"/>
+        <section name="AdminCategoryMessagesSection"/>
+        <section name="AdminCategoryContentSection"/>
+    </page>
+</pages>