⚡ Simplify triple repetition detection logic, removing some branching

[eduherminio]

8+0.08

Score of Lynx-simplify-triple-repetition-2459-win-x64 vs Lynx 2458 - main: 5655 - 5371 - 6799  [0.508] 17825
...      Lynx-simplify-triple-repetition-2459-win-x64 playing White: 3850 - 1685 - 3377  [0.621] 8912
...      Lynx-simplify-triple-repetition-2459-win-x64 playing Black: 1805 - 3686 - 3422  [0.394] 8913
...      White vs Black: 7536 - 3490 - 6799  [0.613] 17825
Elo difference: 5.5 +/- 4.0, LOS: 99.7 %, DrawRatio: 38.1 %
SPRT: llr 2.89 (100.0%), lbound -2.25, ubound 2.89 - H1 was accepted

40+0.4

Test  | simplify-triple-repetition
Elo   | 1.79 +- 2.64 (95%)
SPRT  | 40.0+0.40s Threads=1 Hash=128MB
LLR   | 1.04 (-2.25, 2.89) [0.00, 3.00]
Games | N: 37566 W: 10711 L: 10518 D: 16337
Penta | [1050, 4437, 7618, 4626, 1052]
https://openbench.lynx-chess.com/test/108/

> python.exe .\sprt.py -w 10711 -l 10518 -d 16337 -e0 -3 -e1 1
ELO: 1.79 +- 2.64 [-0.852, 4.42]
LLR: 4.64 [-3.0, 1.0] (-2.94, 2.94)
H1 Accepted