Apply filter when entering project Gantt view

This will allow to get a already filtered Gantt if you have been inside the
project before and you have applied some filters, as the filter is already
stored in the session.

FEA: ItEr77S15FilteringEnhancements

libreplan-webapp/src/main/java/org/libreplan/web/planner/order/OrderPlanningController.java

@@ -145,6 +145,7 @@ public class OrderPlanningController implements Composer {
         if (planner != null) {
             ensureIsInPlanningOrderView();
             updateConfiguration();
+            onApplyFilter();
         }
     }