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New version chess engine: Nectar 0.1.4 and NNUE

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Nectar - UCI chess engine
Author: Dragjon

The engine was created recently and has not played enough games yet to be on the CEDR ranking list. Tests of this version soon.

v 0.1.4:
Changes from V0.1.3
Efficient updates (UE)
Self-generated data
New architecture
Several refactoring
SIMD
Hand-tuning params
Score of NectarV0.1.4 vs NectarV0.1.3: 307 - 214 - 117  [0.573] 638
...      NectarV0.1.4 playing White: 146 - 114 - 60  [0.550] 320
...      NectarV0.1.4 playing Black: 161 - 100 - 57  [0.596] 318
...      White vs Black: 246 - 275 - 117  [0.477] 638
Elo difference: 51.0 +/- 24.6, LOS: 100.0 %, DrawRatio: 18.3 %
SPRT: llr 2.97 (100.9%), lbound -2.94, ubound 2.94 - H1 was accepted


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