Drop support for torch<1.8.0 + remove deprecated code

That's it! 😇

Onnxable torch_stft + PCEN

Last release before dropping support for torch<1.8

Thanks to @faroit and @cameronmaske

Torch1.8x support

torch.rfft has been deprecated and the cycle is quite fast, it's been removed from nightly recently so we have to rely on the new torch.fft which returns complex numbers.

Native complex conversions

Added to_torch_complex and from_torch_complex.

Matching torch.stft and torch.istft

Add TorchSTFTFB which can be used in replacement of torch.stft and torch.istft for models which have been trained with torch ops but need to be transferred to ONNX for example.

Not all options are covered, see warning and note in the docstring.

Stable release #1

v0.1.0

Release v0.1.0

Woohoo

This will hopefully be useful to a broader community as a separate repo. After several requests, here it is !