More work on refactor to interfaces

Plugins/PkmnLib.Plugin.Gen7/Scripts/Abilities/Simple.cs

@@ -6,10 +6,10 @@ namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
 /// <see href="https://bulbapedia.bulbagarden.net/wiki/Simple_(Ability)">Bulbapedia - Simple</see>
 /// </summary>
 [Script(ScriptCategory.Ability, "simple")]
-public class Simple : Script
+public class Simple : Script, IScriptChangeStatBoostChange
 {
     /// <inheritdoc />
-    public override void ChangeStatBoostChange(IPokemon target, Statistic stat, bool selfInflicted, ref sbyte amount)
+    public void ChangeStatBoostChange(IPokemon target, Statistic stat, bool selfInflicted, ref sbyte amount)
     {
         amount = amount.MultiplyOrMax(2);
     }