Reactivate atmospheric computation before inverse location failed

In case the inverse location failed, but computation continue (for
instance while computing an inverse loc grid), the user can manage the
failure and continue the computation of the grid. So the atmospheric
computation must be reactivated.

src/main/java/org/orekit/rugged/api/Rugged.java

@@ -755,11 +755,12 @@ public class Rugged {
         // compute the sensor pixel on the desired ground point WITHOUT atmosphere
         atmosphericRefraction.deactivateComputation();
         final SensorPixel sp0 = inverseLocation(sensorName, point, minLine, maxLine);
+        atmosphericRefraction.reactivateComputation();
+        
         if (sp0 == null) {
-            // Impossible to find the point in the given min line and max line
+            // Impossible to find the point in the given min line and max line (without atmosphere)
             throw new RuggedException(RuggedMessages.INVALID_RANGE_FOR_LINES, minLine, maxLine, "");
         }
-        atmosphericRefraction.reactivateComputation();
 
         // set up the starting point of the fixed point method
         final double pixel0 = sp0.getPixelNumber();