This also fixes a sensor data reading bug: previously, _sensorIndex was multiplied by 3 by MjEngineTool. PiperOrigin-RevId: 451699887 Change-Id: I864bcbf8159857764854b25311a26ec5672125d9
PiperOrigin-RevId: 434731612 Change-Id: I0cfda3e7a3d1c72036764986efc252ffa1b8c6b0