Initial set up for item use

PkmnLib.Dynamic/ScriptHandling/Registry/ItemScriptAttribute.cs

@@ -0,0 +1,20 @@
+using JetBrains.Annotations;
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Dynamic.ScriptHandling.Registry;
+
+[AttributeUsage(AttributeTargets.Class)]
+[MeansImplicitUse]
+public class ItemScriptAttribute : Attribute
+{
+    /// <summary>
+    /// The name of the script.
+    /// </summary>
+    public StringKey Name { get; }
+
+    /// <inheritdoc cref="ItemScriptAttribute"/>
+    public ItemScriptAttribute(string name)
+    {
+        Name = name;
+    }
+}