* add brpc to use paraformer

This reverts commit 6e0044be.

*merge develop into speechx

* update wfst script

* add skip blank

* move s2t data preprocess into paddlespeech.dataset

* avg model, compute wer, format rsl into paddlespeech.dataset

* fix format rsl

* fix avg ckpts

Signed-off-by: Yulv-git <yulvchi@qq.com>

* mv dataset into paddlespeech.dataset

* add aidatatang

* fix import

* [Engine] rename cls to AudioClassification
* [Engine] add android && vad demo

* onnxruntime change to fastdeploy

* add function for generating srt file

在原来websocket_client.py的基础上，增加了由wav或mp3格式的音频文件生成对应srt格式字幕文件的功能

* add function for generating srt file

在原来websocket_client.py的基础上，增加了由wav或mp3格式的音频文件生成对应srt格式字幕文件的功能

* keep origin websocket_client.py

恢复原本的websocket_client.py文件

* add generating subtitle function into README

* add generate subtitle funciton into README

* add subtitle generation function

* add subtitle generation function

* add vad interface GetVadResult

* fix comment

* iSTFTNet implementation based on hifigan, not affect the function and execution of HIFIGAN

* modify the comment in iSTFT.yaml

* add the comments in hifigan

* iSTFTNet implementation based on hifigan, not affect the function and execution of HIFIGAN

* modify the comment in iSTFT.yaml

* add the comments in hifigan

* add iSTFTNet.md

* modify the format of iSTFTNet.md

* modify iSTFT.yaml and hifigan.py

* Format code using pre-commit

* modify hifigan.py,delete the unused self.istft_layer_id , move the self.output_conv behind else, change conv_post to output_conv

* update iSTFTNet_csmsc_ckpt.zip download link

* modify iSTFTNet.md

* modify hifigan.py and iSTFT.yaml

* modify iSTFTNet.md

* add starganv2 vc trainer

* fix StarGANv2VCUpdater and losses

* fix StarGANv2VCEvaluator

* add some typehint

* refactor recognizer_controller
* clean frontend file

* support vad ios compile
* support onnx model recognize
* add build ios sh

* support vad ios compile

* support onnx model recognize

* add build ios sh

* fix asr compile

* fix elementwise_floordiv's fill_constant

* add float converter for min_value in attention

* fix asr compile
* add pybind

* add AddBlk, ReverseFrac function
* rename text processing functions