Fsrs

What's Changed
* Fine tuned w1 and w2 for pretraining by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/269
* minor refactor & align with fsrs-optimizer by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/271
* Fix/align `CosineAnnealingLR` with torch version by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/272


**Full Changelog**: https://github.com/open-spaced-repetition/fsrs-rs/compare/v2.0.0...v2.0.1

What's Changed
* Feat/option enable_short_term in training by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/258
* Feat/Simulator learn affects review limit option by Luc-Mcgrady in https://github.com/open-spaced-repetition/fsrs-rs/pull/267


**Full Changelog**: https://github.com/open-spaced-repetition/fsrs-rs/compare/v1.5.0...v2.0.0

What's Changed
* add doc check by asukaminato0721 in https://github.com/open-spaced-repetition/fsrs-rs/pull/266
* Feat/support recency weighting by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/260


**Full Changelog**: https://github.com/open-spaced-repetition/fsrs-rs/compare/v1.4.9...v1.5.0

What's Changed
* Fix/memorization calculation and due date handling in simulation by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/265


**Full Changelog**: https://github.com/open-spaced-repetition/fsrs-rs/compare/v1.4.8...v1.4.9

What's Changed
* Fix/optimize card priority calculation and fix learn span behavior by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/263


**Full Changelog**: https://github.com/open-spaced-repetition/fsrs-rs/compare/v1.4.7...v1.4.8

What's Changed
* Fix/check review_limit only if is_learn is false by L-M-Sherlock in https://github.com/open-spaced-repetition/fsrs-rs/pull/262


**Full Changelog**: https://github.com/open-spaced-repetition/fsrs-rs/compare/v1.4.6...v1.4.7