LVD: Updated throttle model default constant to 0.0 instead of 1.0 (default off instead of default on)

Author: Arrowstar

helper_methods/ksptot_ma/launch_vehicle_designer/classes/ForceModels/steering/@ThrottlePolyModel/ThrottlePolyModel.m

@@ -51,7 +51,7 @@ function setPolyTerms(obj, const, linear, accel)
 
     methods(Static)
         function model = getDefaultThrottleModel()
-            throttlePoly = PolynominalModel(0,1,0,0);
+            throttlePoly = PolynominalModel(0,0,0,0);
             model = ThrottlePolyModel(throttlePoly);
         end
     end