Torchsort

What's Changed
* Fix incorrect results when running on non-default GPU by teddykoker in https://github.com/teddykoker/torchsort/pull/49


**Full Changelog**: https://github.com/teddykoker/torchsort/compare/v0.1.8...v0.1.9

What's Changed
* Update README.md by teddykoker in https://github.com/teddykoker/torchsort/pull/36
* Better error message if CUDA extension is not available by teddykoker in https://github.com/teddykoker/torchsort/pull/43


**Full Changelog**: https://github.com/teddykoker/torchsort/compare/v0.1.7...v0.1.8

Add half-precision (fp16) support.

Ensure cuda code is added to source release on PyPi.

Remove `-arch="compute_50"` from extra args (affected building when TORCH_CUDA_ARCH_LIST is used).

Google colab installation fix.