Exposing payoff in the value file and updating CORD version

Change-Id: I8f861b800a9e01af36ef9123a466110bc969be23
diff --git a/xos-core/requirements.yaml b/xos-core/requirements.yaml
index 468cb39..8a4f757 100644
--- a/xos-core/requirements.yaml
+++ b/xos-core/requirements.yaml
@@ -18,6 +18,6 @@
   version: 1.0.1
   repository: file://../xos-db
 - name: xos-gui
-  version: 1.2.6
+  version: 1.2.7
   repository: file://../xos-gui
   condition: xos-gui.enabled