change the position p gain to tunable parameter

source/RobotAPI/libraries/KITGripperEtherCAT/KITGripperBasisBoard/JointController/JointPWMPositionController.cpp

@@ -52,7 +52,7 @@ JointPWMPositionController::JointPWMPositionController(const std::string deviceN
     posController.positionLimitHi = jointData->getSoftLimitHi();
     //    controller.positionLimitLoHard = dataPtr->getHardLimitLo();
     posController.positionLimitLo = jointData->getSoftLimitLo();
-    posController.p = 3.0f;
+    posController.p = velocityControllerConfigDataPtr->posControlP;  //3.0f;
     this->isLimitless = jointData->isLimitless();
     //    ARMARX_INFO << "limitless: " << this->isLimitless;
 }