Increase default TT size

[vinc]

At the moment the default transposition table size is 8 MB for very fast loading, but with long search time we can use as much as 1 GB, so we need to find out what happen if we increase the size for very short time games, and then longer times.

[vinc]

Changing the TT size was not very conclusive:

64MB:

Score of Little Wing v0.3.0-111-gf7b19eb vs Little Wing v0.3.0-111-gf7b19eb: 231 - 243 - 158  [0.491] 632
Elo difference: -6.60 +/- 23.46
SPRT: llr -0.318, lbound -2.94, ubound 2.94
Finished match

1MB:

Score of Little Wing v0.3.0-111-gf7b19eb vs Little Wing v0.3.0-111-gf7b19eb: 270 - 262 - 193  [0.506] 725
Elo difference: 3.83 +/- 21.66
SPRT: llr 0.0546, lbound -2.94, ubound 2.94
Finished match

32MB:

Score of Little Wing v0.3.0-111-gf7b19eb vs Little Wing v0.3.0-111-gf7b19eb: 2281 - 2257 - 1626  [0.502] 6164
Elo difference: 1.35 +/- 7.43
SPRT: llr -0.398, lbound -2.94, ubound 2.94
Finished match

16MB:

Score of Little Wing v0.3.0-111-gf7b19eb vs Little Wing v0.3.0-111-gf7b19eb: 1007 - 1033 - 720  [0.495] 2760
Elo difference: -3.27 +/- 11.13
SPRT: llr -0.893, lbound -2.94, ubound 2.94
Finished match