Add generic menu link for CORE Office

tailbone_corepos/menus.py

@@ -24,6 +24,8 @@
 Common menus for CORE-POS
 """
 
+from rattail_corepos.config import core_office_url
+
 
 def make_corepos_menu(request):
     url = request.route_url
@@ -108,4 +110,15 @@ def make_corepos_menu(request):
         ],
     }
 
+    office_url = core_office_url(request.rattail_config)
+    if office_url:
+        corepos_menu['items'].extend([
+            {'type': 'sep'},
+            {
+                'title': "Go to CORE Office",
+                'url': '{}/'.format(office_url),
+                'target': '_blank',
+            },
+        ])
+
     return corepos_menu