add a VirtualRobot::Robot::clone function taking no parameter that just clones...

add a VirtualRobot::Robot::clone function taking no parameter that just clones the robot (no renaming etc)

VirtualRobot/Robot.cpp

@@ -828,6 +828,11 @@ namespace VirtualRobot
         return result;
     }
 
+    RobotPtr Robot::clone()
+    {
+        return clone(getName());
+    }
+
     void Robot::createVisualizationFromCollisionModels()
     {
         std::vector<RobotNodePtr> robotNodes = this->getRobotNodes();

VirtualRobot/Robot.h

@@ -245,6 +245,7 @@ namespace VirtualRobot
 
         */
         virtual RobotPtr clone(const std::string& name, CollisionCheckerPtr collisionChecker = CollisionCheckerPtr(), float scaling = 1.0f);
+        virtual RobotPtr clone();
 
         /*!
             Just storing the filename.