add c# assembly for fsmn vad (#650)

manyeyes

2023-06-21 c2a2575f198b1bfd452ea5769bec81bcce3d3a42

 setup.py

@@ -81,7 +81,7 @@
        # "gtn==0.0.0",
    ],
    "setup": [
        "numpy<=1.21.3",
        "numpy",
        "pytest-runner",
    ],
    "test": [