Torch-hd

What's Changed
* Support explicit VSA models enabling customization of operations by mikeheddes in https://github.com/hyperdimensional-computing/torchhd/pull/91
* Support for the Binary Spatter Codes, Multiply-Add-Permute, and Fourier Holographic Reduced Representation VSA models.
* All functions in the functional module are now accessible from the root of torchhd. For example `torchhd.functional.multiset` is now accessible as `torchhd.multiset`.

Breaking changes
* Renamed `cosine_similarity` to `cos_similarity`.
* Removal of the unbind function in favor of inverse and negative functions.


**Full Changelog**: https://github.com/hyperdimensional-computing/torchhd/compare/v3.4.0...v4.0.0

What's Changed
* Add sinusoid embedding and fix projection embedding by Didanny in https://github.com/hyperdimensional-computing/torchhd/pull/88


**Full Changelog**: https://github.com/hyperdimensional-computing/torchhd/compare/v3.3.0...v3.4.0

What's Changed
* Add functional creation of graph encoding by mikeheddes in https://github.com/hyperdimensional-computing/torchhd/pull/85
* Add randsel bundling of hypervectors by mikeheddes in https://github.com/hyperdimensional-computing/torchhd/pull/86


**Full Changelog**: https://github.com/hyperdimensional-computing/torchhd/compare/v3.2.0...v3.3.0

What's Changed
* Add universal cosine and dot similarity support by mikeheddes in https://github.com/hyperdimensional-computing/torchhd/pull/82


**Full Changelog**: https://github.com/hyperdimensional-computing/torchhd/compare/v3.1.0...v3.2.0

What's Changed
* Add complex hypervector types by mikeheddes in https://github.com/hyperdimensional-computing/torchhd/pull/81


**Full Changelog**: https://github.com/hyperdimensional-computing/torchhd/compare/v3.0.1...v3.1.0

Fix conda package configurations.

**Full Changelog**: https://github.com/hyperdimensional-computing/torchhd/compare/v3.0.0...v3.0.1