add c# assembly for fsmn vad (#650)

manyeyes

2023-06-21 c2a2575f198b1bfd452ea5769bec81bcce3d3a42

 funasr/models/encoder/opennmt_encoders/conv_encoder.py

@@ -67,7 +67,7 @@

class ConvEncoder(AbsEncoder):
    """
    author: Speech Lab, Alibaba Group, China
    Author: Speech Lab of DAMO Academy, Alibaba Group
    Convolution encoder in OpenNMT framework
    """