Outpost tuning

double mg bonus and half eg bonus.

STC:
LLR: 2.95 (-2.94,2.94) [-1.50,4.50]
Total: 18142 W: 3094 L: 2948 D: 12100

LTC:
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 83561 W: 11706 L: 11329 D: 60526

bench 7831429

src/evaluate.cpp

@@ -255,7 +255,7 @@ namespace {
             bonus += bonus / 2;
     }
 
-    return make_score(bonus, bonus);
+    return make_score(bonus * 2, bonus / 2);
   }