fix: store tt table per game, not per search #28
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Persist the tt table per game, not per search. Also added way to clear the table so that it is cleared between games. bench: 2577543
Tried to fix TT issues and also added a way to support custom commands in UCI mode. For now, only support `hash` command. TT still seems to be broken though as the new engine loses spectacularly to the engine on `main` bench: 2153098
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Persist the tt table per game, not per search. Also added way to clear the table so that it is cleared between games.
Note that the engine is kinda broken now, so we will likely reset things and revert to a more basic negamax without transposition table support.
bench: 2577543