added config for wishlist sidebar in config

Author: torhoehn

app/code/Magento/Wishlist/etc/adminhtml/system.xml

@@ -39,6 +39,10 @@
                     <label>Enabled</label>
                     <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                 </field>
+                <field id="show_in_sidebar" translate="label" type="select" sortOrder="5" showInDefault="1" showinWebsite="1" showInStore="1" canRestore="1">
+                    <label>Show in Sidebar</label>
+                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
+                </field>
             </group>
             <group id="wishlist_link" translate="label" sortOrder="3" showInDefault="1" showInWebsite="1" showInStore="0">
                 <label>My Wish List Link</label>

app/code/Magento/Wishlist/etc/config.xml

@@ -10,6 +10,7 @@
         <wishlist>
             <general>
                 <active>1</active>
+                <show_in_sidebar>1</show_in_sidebar>
             </general>
             <email>
                 <email_identity>general</email_identity>

app/code/Magento/Wishlist/view/frontend/layout/default.xml

@@ -18,7 +18,7 @@
             </block>
         </referenceBlock>
         <referenceContainer name="sidebar.additional">
-            <block class="Magento\Wishlist\Block\Customer\Sidebar" name="wishlist_sidebar" as="wishlist" template="Magento_Wishlist::sidebar.phtml"/>
+            <block class="Magento\Wishlist\Block\Customer\Sidebar" name="wishlist_sidebar" as="wishlist" template="Magento_Wishlist::sidebar.phtml" ifconfig="wishlist/general/show_in_sidebar"/>
         </referenceContainer>
     </body>
 </page>