Reward Bishop against Knight

Improved formatting and changed the constants in order to reward bishop vs knight. The changes include increasing knight coefficient, lowing knight-pawn bonus, increasing BvN, and rewarding bishops against bishop pair.

I tested in Cutechess-cli under the speed of 5+0.01 using Stockfish's book up to 8 depth.
So far, I have run 2000 tests with good results so far (stat tool by Gary):
ELO: 9.38 +- 99%: 20.11  95%: 15.26
LOS: 95.52
Wins: 552  Losses: 497  Draws: 951  Total: 2000

Also, if it means anything, it seems evident that this version will make future improvements easier.

Finally, the bishop vs pair coefficient should likely be dramatically increased to yield better results.