Initial setup for testing AI performance, random fixes

Plugins/PkmnLib.Plugin.Gen7/Libraries/Battling/Gen7BattleStatCalculator.cs

@@ -132,7 +132,7 @@ public class Gen7BattleStatCalculator : IBattleStatCalculator
             4 => 6.0f / 2.0f,
             5 => 7.0f / 2.0f,
             6 => 8.0f / 2.0f,
-            _ => throw new ArgumentException("Stat boost was out of expected range of -6 to 6"),
+            _ => throw new ArgumentException($"Stat boost was out of expected range of -6 to 6: {boost}"),
         };
     }
 }

Plugins/PkmnLib.Plugin.Gen7/Libraries/Battling/Gen7MiscLibrary.cs

@@ -14,6 +14,10 @@ public class Gen7MiscLibrary : IMiscLibrary
     public ITurnChoice ReplacementChoice(IPokemon user, byte targetSide, byte targetPosition) =>
         new MoveChoice(user, new LearnedMoveImpl(_struggleData, MoveLearnMethod.Unknown), targetSide, targetPosition);
 
+    /// <inheritdoc />
+    public bool IsReplacementChoice(ITurnChoice choice) =>
+        choice is MoveChoice moveChoice && moveChoice.ChosenMove.MoveData == _struggleData;
+
     /// <inheritdoc />
     public TimeOfDay GetTimeOfDay()
     {