Update requirements.txt

add futurist and cotyledon
diff --git a/requirements.txt b/requirements.txt
index 4ba51bb..60f0516 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,8 @@
 
 pbr>=2.0 # Apache-2.0
 flask
+cotyledon>=1.3.0 #Apache-2.0
+futurist>=1.8.0 # Apache-2.0
 gunicorn
 oslo.db>=5.0.0
 oslo.config>=8.1.0