toString->std::to_string

include/imu/sensor/sensor_imu.h

@@ -40,7 +40,7 @@ class SensorImu : public SensorBase
 
   public:
     SensorImu(const YAML::Node &_params)
-        : SensorBase("SensorImu" + toString(DIM) + "d",
+        : SensorBase("SensorImu" + std::to_string(DIM) + "d",
                      DIM,
                      // FIXME: JV: Should we remove PO since IMU are now implemented to not have extrinsics?
                      (DIM == 2 ? TypeComposite{{'P', "StatePoint2d"}, {'O', "StateAngle"}, {'G', "StateParams1"}}