Stormphrax 4.1.0

• large tuning run of all params
• various search improvements
• as standard, other miscellaneous tweaks and fixes

Minor release this time, as progress has been somewhat slow - search behaviour has changed fairly dramatically, but the network is the same. Some speedups in NNUE inference, though!

Many thanks again to everyone who has contributed CPU time to the OpenBench instance that Stormphrax is tested on: @Adam-Kulju, @Alex2262, @AndyGrant, @archishou, @cosmobobak, @crippa1337, @dede1751, @GediminasMasaitis, @iudwgerte, @jhonnold, @jw1912, @lucametehau, @PGG106, @raklaptudirm, @spamdrew128, @uwuplant and particularly @JouanDeag :3

Results against Stormphrax 4.0.0

STC:

Elo   | 38.23 +- 6.01 (95%)
Conf  | 8.0+0.08s Threads=1 Hash=32MB
Games | N: 3002 W: 525 L: 196 D: 2281
Penta | [2, 139, 935, 378, 47]

LTC:

Elo   | 26.81 +- 7.79 (95%)
Conf  | 60.0+0.60s Threads=1 Hash=128MB
Games | N: 1000 W: 106 L: 29 D: 865
Penta | [1, 23, 378, 94, 4]

FRC STC:

Elo   | 47.78 +- 10.02 (95%)
Conf  | 8.0+0.08s Threads=1 Hash=32MB
Games | N: 1500 W: 350 L: 145 D: 1005
Penta | [8, 72, 405, 237, 28]

Elo testing done with OpenBench's 8moves_v3 book for standard chess, and 3moves_FRC for FRC.
Results are obtained from self-play and will likely not scale perfectly to games against other opponents :)

Full Changelog: v4.0.0...v4.1.0