⚖ Add tapered bishop pair bonus (higher in endgames)

[eduherminio]

8+0.08 👍🏽

Score of Lynx 1405 - bishop pair 100 vs Lynx 1399 - main: 3470 - 3254 - 2462  [0.512] 9186
...      Lynx 1405 - bishop pair 100 playing White: 2148 - 1240 - 1205  [0.599] 4593
...      Lynx 1405 - bishop pair 100 playing Black: 1322 - 2014 - 1257  [0.425] 4593
...      White vs Black: 4162 - 2562 - 2462  [0.587] 9186
Elo difference: 8.2 +/- 6.1, LOS: 99.6 %, DrawRatio: 26.8 %
SPRT: llr 2.95 (100.1%), lbound -2.94, ubound 2.94 - H1 was accepted

40+0.4 👍🏽

Score of Lynx 1405 - bishop pair 100 vs Lynx 1399 - main: 2502 - 2311 - 2206  [0.514] 7019
...      Lynx 1405 - bishop pair 100 playing White: 1569 - 849 - 1092  [0.603] 3510
...      Lynx 1405 - bishop pair 100 playing Black: 933 - 1462 - 1114  [0.425] 3509
...      White vs Black: 3031 - 1782 - 2206  [0.589] 7019
Elo difference: 9.5 +/- 6.7, LOS: 99.7 %, DrawRatio: 31.4 %
SPRT: llr 2.95 (100.2%), lbound -2.94, ubound 2.94 - H1 was accepted