add Pi simulation values to serializer

pi/serializers.py

@@ -6,6 +6,8 @@ from pi.models import PiLog
 
 class PiLogSerializer(serializers.ModelSerializer):
     """Pi simulation log entry serializer for the REST API."""
+    simulation_x = serializers.DecimalField(11, 10, coerce_to_string=False)
+    simulation_y = serializers.DecimalField(11, 10, coerce_to_string=False)
 
     class Meta:
         """Meta options."""