Add support for time-management tuning.

[cosmobobak]

for some reason i've done something in this patch that gains elo. STC:

Score of configurability vs dev: 673 - 522 - 1319  [0.530] 2514
...      configurability playing White: 605 - 31 - 622  [0.728] 1258
...      configurability playing Black: 68 - 491 - 697  [0.332] 1256
...      White vs Black: 1096 - 99 - 1319  [0.698] 2514
Elo difference: 20.9 +/- 9.4, LOS: 100.0 %, DrawRatio: 52.5 %
SPRT: llr 2.96 (100.4%), lbound -2.94, ubound 2.94 - H1 was accepted

LTC:

Score of configurability vs master: 2283 - 2086 - 5210  [0.510] 9579
...      configurability playing White: 2203 - 56 - 2530  [0.724] 4789
...      configurability playing Black: 80 - 2030 - 2680  [0.296] 4790
...      White vs Black: 4233 - 136 - 5210  [0.714] 9579
Elo difference: 7.1 +/- 4.7, LOS: 99.9 %, DrawRatio: 54.4 %
SPRT: llr 2.95 (100.1%), lbound -2.94, ubound 2.94 - H1 was accepted