Brush 0.0.1

Initial release

This is the initial release of Brush, see the README for more information on the project!

Release notes since the original OS release:

• Add ability to train with transparent images

• Add option to select GPU with the CUBECL_DEFAULT_DEVICE environment variable

• Add 2D image trainer example

• Tweak splitting cloning logic, adds +- 0.5 PSNR

• Fixed backwards gradient for quaternions & SH

• Fix exporting ply files

• Fix evaluation not running

• Fix some NaNs on the web version