Pgx

What's Changed
* Speed benchmark on OpenSpiel and PettingZoo by nissymori in https://github.com/sotetsuk/pgx/pull/394
* Add gif to README by sotetsuk in https://github.com/sotetsuk/pgx/pull/404
* [Backgammon] Implement no-op by nissymori in https://github.com/sotetsuk/pgx/pull/415
* Refactor speed benchmark scripts by sotetsuk in https://github.com/sotetsuk/pgx/pull/409
* [Backgammon] FIx backgammon warning by sotetsuk in https://github.com/sotetsuk/pgx/pull/418


**Full Changelog**: https://github.com/sotetsuk/pgx/compare/v0.0.18...v0.0.19

What's Changed

* Fix speed benchmark by sotetsuk in https://github.com/sotetsuk/pgx/pull/391
* Add speed comparison script by nissymori in https://github.com/sotetsuk/pgx/pull/383
* [Backgammon] Add env by sotetsuk in https://github.com/sotetsuk/pgx/pull/395
* [TicTacToe] improve speed by sotetsuk in https://github.com/sotetsuk/pgx/pull/401


**Full Changelog**: https://github.com/sotetsuk/pgx/compare/v0.0.17...v0.0.18

What's Changed
* [Shogi] Add and fix buggy test samples by youyou-ku in https://github.com/sotetsuk/pgx/pull/358
* [Shogi] Fix from/to sfen by sotetsuk in https://github.com/sotetsuk/pgx/pull/376
* [Shogi] implement `observe` by sotetsuk in https://github.com/sotetsuk/pgx/pull/374
* [Shogi] fix bugs by sotetsuk in https://github.com/sotetsuk/pgx/pull/377
* [Shogi] Fix unjittable bug by sotetsuk in https://github.com/sotetsuk/pgx/pull/379
* Implement envs by sotetsuk in https://github.com/sotetsuk/pgx/pull/381
* [Backgammon] Fix backgammon test by sotetsuk in https://github.com/sotetsuk/pgx/pull/385

Benchmark

* Compare with SubprocVecEnv in Go by nissymori in https://github.com/sotetsuk/pgx/pull/367
* Compare with for loop in Go by nissymori in https://github.com/sotetsuk/pgx/pull/371

**Full Changelog**: https://github.com/sotetsuk/pgx/compare/v0.0.16...v0.0.17

What's Changed
* [BridgeBidding] Add random player position by harukaki in https://github.com/sotetsuk/pgx/pull/299
* [Shogi] convert sfen to state by youyou-ku in https://github.com/sotetsuk/pgx/pull/356
* [Shogi] reform `sfen_to_state` by youyou-ku in https://github.com/sotetsuk/pgx/pull/357
* [Shogi] Speedup by caching legal moves by sotetsuk in https://github.com/sotetsuk/pgx/pull/360
* [Go] Use `pseudo-liberty` by OkanoShinri in https://github.com/sotetsuk/pgx/pull/322
* [Go] Fix counting ji by OkanoShinri in https://github.com/sotetsuk/pgx/pull/359
* [Go] Use `neighbour` func by sotetsuk in https://github.com/sotetsuk/pgx/pull/365
* [Go] Refactor removing stones by sotetsuk in https://github.com/sotetsuk/pgx/pull/366
* [Shogi] Cache effects for speed up by sotetsuk in https://github.com/sotetsuk/pgx/pull/361


**Full Changelog**: https://github.com/sotetsuk/pgx/compare/v0.0.15...v0.0.16

What's Changed
* Remove flax dependency by sotetsuk in https://github.com/sotetsuk/pgx/pull/352


**Full Changelog**: https://github.com/sotetsuk/pgx/compare/v0.0.14...v0.0.15

What's Changed

* [Shogi] Filter legal drops (合駒） by sotetsuk in https://github.com/sotetsuk/pgx/pull/329
* [Shogi] Separate legal action functions by sotetsuk in https://github.com/sotetsuk/pgx/pull/334
* [Shogi] Fix capturing checking piece bug by sotetsuk in https://github.com/sotetsuk/pgx/pull/335
* [Shogi] Refactor legal actions by sotetsuk in https://github.com/sotetsuk/pgx/pull/336
* [Shogi] Convert to direction by sotetsuk in https://github.com/sotetsuk/pgx/pull/338
* [Shogi] Fix input action dtype by sotetsuk in https://github.com/sotetsuk/pgx/pull/339
* [Shogi] init/step by sotetsuk in https://github.com/sotetsuk/pgx/pull/340
* [Shogi] Fix legal action mask by sotetsuk in https://github.com/sotetsuk/pgx/pull/341
* [Shogi] Make init/step jittable by sotetsuk in https://github.com/sotetsuk/pgx/pull/342
* [Shogi] Fix visualizer by sotetsuk in https://github.com/sotetsuk/pgx/pull/343
* [Shogi] Add env by sotetsuk in https://github.com/sotetsuk/pgx/pull/348


**Full Changelog**: https://github.com/sotetsuk/pgx/compare/v0.0.13...v0.0.14