adds simple segment middleware

src/personalisation/middleware.py

@@ -0,0 +1,13 @@
+class SegmentMiddleware(object):
+    """Middleware for testing and putting a user in a segment"""
+
+    def __init__(self, get_response=None):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        request.session['segmented'] = True
+        response = self.get_response(request)
+
+        print(request.session['segmented'])
+
+        return response