VelocityControllerHelper: changing VectorXf to Vector6f

VectorXf is not guaranted to have 6 elements.

source/RobotAPI/libraries/RobotStatechartHelpers/VelocityControllerHelper.cpp

@@ -57,7 +57,7 @@ namespace armarx
         controller->activateController();
     }
 
-    void VelocityControllerHelper::setTargetVelocity(const Eigen::VectorXf& cv)
+    void VelocityControllerHelper::setTargetVelocity(const Eigen::Vector6f& cv)
     {
         controller->setTargetVelocity(cv(0), cv(1), cv(2), cv(3), cv(4), cv(5));
     }

source/RobotAPI/libraries/RobotStatechartHelpers/VelocityControllerHelper.h

@@ -43,7 +43,7 @@ namespace armarx
 
         void init();
 
-        void setTargetVelocity(const Eigen::VectorXf& cv);
+        void setTargetVelocity(const Eigen::Vector6f& cv);
 
         void setNullSpaceControl(bool enabled);