Refactor move classes to implement respective interfaces for better structure

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/MultiHitMove.cs

@@ -1,10 +1,10 @@
 namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
 
 [Script(ScriptCategory.Move, "2_5_hit_move")]
-public class MultiHitMove : Script
+public class MultiHitMove : Script, IScriptChangeNumberOfHits
 {
     /// <inheritdoc />
-    public override void ChangeNumberOfHits(IMoveChoice choice, ref byte numberOfHits)
+    public void ChangeNumberOfHits(IMoveChoice choice, ref byte numberOfHits)
     {
         var random = choice.User.BattleData?.Battle.Random;
         if (random == null)