Refactor move classes to implement respective interfaces for better structure

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/RagePowderEffect.cs

@@ -1,7 +1,7 @@
 namespace PkmnLib.Plugin.Gen7.Scripts.Side;
 
 [Script(ScriptCategory.Side, "rage_powder")]
-public class RagePowderEffect : Script
+public class RagePowderEffect : Script, IScriptChangeIncomingTargets
 {
     public IPokemon User { get; set; }
 
@@ -11,7 +11,7 @@ public class RagePowderEffect : Script
     }
 
     /// <inheritdoc />
-    public override void ChangeIncomingTargets(IMoveChoice moveChoice, ref IReadOnlyList<IPokemon?> targets)
+    public void ChangeIncomingTargets(IMoveChoice moveChoice, ref IReadOnlyList<IPokemon?> targets)
     {
         // Ignore multi-hit moves
         if (targets.Count != 1)