GitLab

* Update ace_loss.py

* Update center_loss.py

* Update enhanced_ctc_loss.md

fix doc

infer_* to python_infer_*

[full_chain] slice test.sh to test_python.sh

rm unused import

Update joinus.png 

update doc for tests

[document] Fix installation doc

add sar dict

fix BGR

fix doc

split cpp_infer