Chess engine: Wahoo 2.0.1

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Wahoo - UCI chess engine  Rating CEDR=1761
Author: Andrew Hockman

v.2.0.1:
Estimated Elo 2370 CCRL

Bugfix
EvalScore type needed to be 4 bytes, because 2 byte integers were able to overflow during specific calculations.
Binaries
Wahoo's release scheme follows the microarchitecture levels.

x86_64-v1 is the slowest but compatible with almost anything.
x86_64-v2 is faster but is compatible with CPUs pre-Haswell/Excavator.
x86_64-v3 is faster still and recommended on modern systems.
x86_64-v4 is the fastest but requires AVX-512 support.


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