Implements species/form changing

PkmnLib.Dynamic/ScriptHandling/Script.cs

@@ -67,7 +67,7 @@ public abstract class Script
     /// <summary>
     /// This function is ran when this script starts being in effect.
     /// </summary>
-    public virtual void OnInitialize(IDynamicLibrary library, IReadOnlyDictionary<StringKey, object>? parameters)
+    public virtual void OnInitialize(IDynamicLibrary library, IReadOnlyDictionary<StringKey, object?>? parameters)
     {
     }