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Chess engine: Cheng 4.44

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Cheng4 - UCI chess engines, Rating CEDR=3167
Author - Martin Sedlak   

v.4.44:
NN switched from floats to fixed point - now eval/bench is deterministic again
NN topo changed to 736-224-1 (performance)
switched from leaky relu to plain relu (performance)
NN cache incremental updates (performance)
NN outputs scaled pawn scores instead of win prob (fixed oscillations at high evals) - thanks Jay
avx2 binaries provided for x64 (the preferred ones to be tested, ~20% faster)
minor bugfixes
bench 10429956


Cheng 4.41 engine results with other engines:
Tomcat 1.06.5/10+310 Partii
Amoeba 3.45/10+010 Partii
Monolith 25/9+19 Partii
BBC 1.46.5/8+58 Partii
Topple 0.8.14.5/8+18 Partii
Demolito 2021-10-212.5/8-38 Partii
Beef 0.3.60/8-88 Partii
FabChess 1.163.5/7+07 Partii
Godel 7.04/6+26 Partii
Nirvanachess 2.53/6+06 Partii
Deuterium 2019.2.37.733/6+06 Partii
Invictus r3822/6-26 Partii
Combusken 2.0.00.5/6-56 Partii
Coiled 1.10/6-66 Partii
Francesca 0.31a3.5/5+25 Partii
Tantabus 2.0.03.5/4+34 Partii
Gargantua 1.01.5/4-14 Partii
Devre 4.00/4-44 Partii
Rodent NNUE 1.02.5/3+23 Partii
MadChess 3.2 beta2/3+13 Partii
Mittens 0.91.5/3+03 Partii



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