Implements an initial version of Baton Pass.

Will probably need some additional work in the future.

PkmnLib.Dynamic/Models/Choices/MoveChoice.cs

@@ -1,4 +1,5 @@
 using PkmnLib.Dynamic.ScriptHandling;
+using PkmnLib.Static.Utils;
 
 namespace PkmnLib.Dynamic.Models.Choices;
 
@@ -31,6 +32,8 @@ public interface IMoveChoice : ITurnChoice
     /// The underlying script of the move.
     /// </summary>
     ScriptContainer Script { get; set; }
+    
+    Dictionary<StringKey, object?>? AdditionalData { get; }
 }
 
 /// <inheritdoc cref="IMoveChoice"/>
@@ -69,6 +72,9 @@ public class MoveChoice : TurnChoice, IMoveChoice
     /// <inheritdoc />
     public ScriptContainer Script { get; set; } = new();
 
+    /// <inheritdoc />
+    public Dictionary<StringKey, object?>? AdditionalData { get; }
+
     /// <inheritdoc />
     public override int ScriptCount => 1 + User.ScriptCount;
 

PkmnLib.Dynamic/ScriptHandling/ScriptContainer.cs

@@ -65,4 +65,9 @@ public class ScriptContainer : IEnumerable<ScriptContainer>, IDeepCloneable
         }
         Script = null;
     }
+    
+    public void ClearWithoutRemoving()
+    {
+        Script = null;
+    }
 }