message: Run OV models correctly for benchmarking pipelines
  Set library path correctly to find plugins not included in the openvino pip package when running OV models for benchmarking pipelines.
diff: @@ -163,12 +163,13 @@ function run_bench_stockov {
  [ -d $VENVTMP ] && rm -rf $VENVTMP
  virtualenv -p python3 $VENVTMP
  source $VENVTMP/bin/activate
  + pip_install opencv-python
  + pip_install openvino==2021.2
  cd ${LOCALSTORE}/demo
  TMPFILE=${WORKDIR}/tmp_output$$
  pythonlib=$(echo $(dirname $(which python3))/../lib)
  - echo LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$pythonlib ./run_ov_infer.sh ${MODEL} ${IMGFILE} $NUM_ITER $device
  - LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$pythonlib:${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/lib/intel64/ \
  + LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${INTEL_OPENVINO_DIR}/deployment_tools/inference_engine/lib/intel64:$pythonlib \
  ./run_ov_infer.sh ${MODEL} ${IMGFILE} $NUM_ITER $device 2>&1 > ${TMPFILE}
  ret_code=$?
  if (( $ret_code == 0 )); then
  