Added templatetag to only display enabled apps

sso/templatetags/installed.py

@@ -0,0 +1,20 @@
+from django import template
+from django.conf import settings
+from django.template.defaultfilters import stringfilter
+
+register = template.Library()
+
+@register.filter
+@stringfilter
+def installed(value):
+    apps = settings.INSTALLED_APPS
+    if "." in value:
+        for app in apps:
+            if app == value:
+                return True
+    else:
+        for app in apps:
+            fields = app.split(".")
+            if fields[-1] == value:
+                return True
+    return False