🧠 On ponderhit adapt soft limit to opponent's time

[eduherminio]

Score of Lynx-ponder-tm-opponent-time-5855-win-x64 vs Lynx 5846 - main: 1626 - 1574 - 2220  [0.505] 5420
...      Lynx-ponder-tm-opponent-time-5855-win-x64 playing White: 1115 - 433 - 1162  [0.626] 2710
...      Lynx-ponder-tm-opponent-time-5855-win-x64 playing Black: 511 - 1141 - 1058  [0.384] 2710
...      White vs Black: 2256 - 944 - 2220  [0.621] 5420
Elo difference: 3.3 +/- 7.1, LOS: 82.1 %, DrawRatio: 41.0 %
SPRT: llr 0.418 (14.5%), lbound -2.25, ubound 2.89

Stopped, will need to be retested after fixing illegal moves and timeouts.

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May I f'ed the merge or maybe the previous pondering changes made this useless because of not searching again on low time, but after 865b6d5:

Score of Lynx-ponder-tm-opponent-time-7073-win-x64 vs Lynx 7071 - main: 407 - 547 - 732  [0.458] 1686
...      Lynx-ponder-tm-opponent-time-7073-win-x64 playing White: 347 - 105 - 391  [0.644] 843
...      Lynx-ponder-tm-opponent-time-7073-win-x64 playing Black: 60 - 442 - 341  [0.273] 843
...      White vs Black: 789 - 165 - 732  [0.685] 1686
Elo difference: -28.9 +/- 12.5, LOS: 0.0 %, DrawRatio: 43.4 %
SPRT: llr -2.26 (-78.3%), lbound -2.25, ubound 2.89 - H0 was accepted