* Implement backend of extrema in bezier-rs
* Added extrema frontend
* Added extrema interface
* Wrapped extrema in filter function to remove points not on the curve
* Saved intermediate results while computing extrema
* Fixed extrema bug when a in cubic formula is 0
* Removed extra prints
* Fixed quadratic extrema regression
* Moved helper functions to utils file
* Fixed bug in solve linear
* Stylistic changes per review
* Sentence comments
Co-authored-by: Linda Zheng <thelindazheng@gmail.com>
Co-authored-by: Keavon Chambers <keavon@keavon.com>
