clone cms with menus, make menus standalone app

cms/test_utils/project/pluginapp/plugins/extra_context/cms_plugins.py

@@ -0,0 +1,18 @@
+from django.utils.translation import gettext as _
+
+from cms.models.pluginmodel import CMSPlugin
+from cms.plugin_base import CMSPluginBase
+from cms.plugin_pool import plugin_pool
+
+
+class ExtraContextPlugin(CMSPluginBase):
+    model = CMSPlugin
+    name = _("Extra Context")
+    render_template = "extra_context_plugin.html"
+    admin_preview = False
+
+    def render(self, context, instance, placeholder):
+        return context
+
+
+plugin_pool.register_plugin(ExtraContextPlugin)