add paraformer online opt infer code

haoneng.lhn

2023-09-14 f41a1276ff18cb9fd3d837dcda84a7650637d579

 egs/aishell/transformer/path.sh

@@ -3,3 +3,5 @@
# NOTE(kan-bayashi): Use UTF-8 in Python to avoid UnicodeDecodeError when LC_ALL=C
export PYTHONIOENCODING=UTF-8
export PATH=$FUNASR_DIR/funasr/bin:$PATH

export OMP_NUM_THREADS=1