Refactor move classes to implement respective interfaces for better structure

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

@@ -6,10 +6,10 @@ namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
 /// <see href="https://bulbapedia.bulbagarden.net/wiki/Storm_Drain_(Ability)">Bulbapedia - Storm Drain</see>
 /// </summary>
 [Script(ScriptCategory.Ability, "storm_drain")]
-public class StormDrain : Script
+public class StormDrain : Script, IScriptChangeIncomingTargets
 {
     /// <inheritdoc />
-    public override void ChangeIncomingTargets(IMoveChoice moveChoice, ref IReadOnlyList<IPokemon?> targets)
+    public void ChangeIncomingTargets(IMoveChoice moveChoice, ref IReadOnlyList<IPokemon?> targets)
     {
         if (moveChoice.ChosenMove.MoveData.MoveType.Name == "water" && targets.Count == 1)
         {