Implements confusion effect

Plugins/PkmnLib.Plugin.Gen7.Tests/DamageCalculatorTests.cs

@@ -56,7 +56,8 @@ public class DamageCalculatorTests
         // has a double weakness to the move's Ice type
         hit.Effectiveness.Returns(4.0f);
 
-        var damage = damageCalculator.GetDamage(executingMove, defender, 0, hit);
+        var damage = damageCalculator.GetDamage(executingMove, executingMove.UseMove.Category, executingMove.User,
+            defender, executingMove.TargetCount, 0, hit);
         // That means Ice Fang will do between 168 and 196 HP damage, depending on luck.
         // Note that we are testing deterministic damage, so we expect the maximum damage.
         await Assert.That(damage).IsEqualTo((uint)196);