Audonnx

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* Added: ``audonnx.Function``
* Added: ``audonnx.Model.labels()``
* Added: arguments
``concat``,
``outputs``,
``squeeze``
to ``audonnx.Model.__call__()``
* Added: tests on Windows
* Added: ``audonnx.testing`` module
* Changed: optionally init ``audonnx.Model`` from proto object instead of ONNX file
* Changed: dynamic axis can be specified as ``None`` in ONNX graph
* Changed: support output nodes where last dimension is dynamic
* Deprecated: argument ``output_names`` of ``audonnx.Model.__call__()``

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* Fixed: always replace dynamic axis names with ``-1``
in input and output shapes of model nodes

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* Added: argument ``auto_install`` to ``audonnx.load()``

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* Added: argument ``device``
* Changed: use CPU by default
* Changed: require ``onnxruntime>=1.8.0``
* Removed:
``audonnx.Model.forward()``
``audonnx.Model.labels``,
``audonnx.Model.predict()``,
``audonnx.Model.transform``

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* Fixed: publication of docs failed

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* Fixed: publication of docs failed