⚡ Avoid checking lack of material in static evaluation when the phase is high enough

[eduherminio]

[-5, 0]

Score of Lynx-perf-avoid-material-checks-when-high-phase-1901-win-x64 vs Lynx 1875 - main: 2690 - 2630 - 3423  [0.503] 8743
...      Lynx-perf-avoid-material-checks-when-high-phase-1901-win-x64 playing White: 1815 - 849 - 1708  [0.610] 4372
...      Lynx-perf-avoid-material-checks-when-high-phase-1901-win-x64 playing Black: 875 - 1781 - 1715  [0.396] 4371
...      White vs Black: 3596 - 1724 - 3423  [0.607] 8743
Elo difference: 2.4 +/- 5.7, LOS: 79.5 %, DrawRatio: 39.2 %
SPRT: llr 2.91 (100.6%), lbound -2.25, ubound 2.89 - H1 was accepted

40+0.4

Score of Lynx-perf-avoid-material-checks-when-high-phase-1901-win-x64 vs Lynx 1875 - main: 1144 - 1098 - 1998  [0.505] 4240
...      Lynx-perf-avoid-material-checks-when-high-phase-1901-win-x64 playing White: 828 - 301 - 992  [0.624] 2121
...      Lynx-perf-avoid-material-checks-when-high-phase-1901-win-x64 playing Black: 316 - 797 - 1006  [0.387] 2119
...      White vs Black: 1625 - 617 - 1998  [0.619] 4240
Elo difference: 3.8 +/- 7.6, LOS: 83.4 %, DrawRatio: 47.1 %
SPRT: llr 0.421 (14.6%), lbound -2.25, ubound 2.89