Bonus for rook on same file as their queen
This patch creates a simple bonus for a rook that is on the same file as the
opponent's queen.
STC 10+0.1 th 1 :
LLR: 2.95 (-2.94,2.94) [0.50,4.50]
Total: 45609 W: 10120 L: 9733 D: 25756
http://tests.stockfishchess.org/tests/view/5d79895a0ebc5902d385484a
LTC 60+0.6 th 1 :
LLR: 2.96 (-2.94,2.94) [0.00,3.50]
Total: 51651 W: 8606 L: 8288 D: 34757
http://tests.stockfishchess.org/tests/view/5d79a0850ebc5902d3854d27
Many thanks to @noobpwnftw for providing the extra cpu resources for fishtest,
which led to me doing these tests.
Closes https://github.com/official-stockfish/Stockfish/pull/2297
Bench: 4024461