Update nnue-architecture to SFNNv15
Updating nnue to a new architecture including a newly trained net using recipe https://github.com/vondele/nettest/pull/395 and trainer https://github.com/official-stockfish/nnue-pytorch/pull/480.
The recipe contains many small improvements additionally the newly relabled data. Thus this is a combined effort.
Passed STC
https://tests.stockfishchess.org/tests/view/6a429fd8f97ff95f78795110
```
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 25312 W: 6725 L: 6422 D: 12165
Ptnml(0-2): 78, 2915, 6397, 3158, 108
```
Passed LTC
https://tests.stockfishchess.org/tests/view/6a434c4cf97ff95f78795235
```
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 32814 W: 8655 L: 8345 D: 15814
Ptnml(0-2): 17, 3469, 9132, 3765, 24
```
closes https://github.com/official-stockfish/Stockfish/pull/6938
Bench: 2639962
Co-authored-by: anematode <anematode@users.noreply.github.com>
Co-authored-by: Joost VandeVondele <vondele@users.noreply.github.com>
Co-authored-by: xu-shawn <xu-shawn@users.noreply.github.com>