Added use of range values to json file

force_bdss/tests/fixtures/test_csv.json

@@ -8,6 +8,9 @@
           {
             "id": "force.bdss.mco_parameter.enthought.ranged",
             "model_data": {
+                "initial_value": 3,
+                "lower_bound": 0,
+                "upper_bound": 10
             }
           }
         ]