Display name support for enum type converter (#2156)

* Display name support for enum type converter

* allow display attribute on enum type converter

* update docs/examples to include enum Display sample

* Revert "allow display attribute on enum type converter"

This reverts commit a0eec5b7555d366f9de7421f6fcf6bc71f2a4557.

* adds ChoiceDisplay for enum type converters

* Update EnumChoiceAttribute.cs

* fix renamed folder issue

* fix namespace

Co-authored-by: Xeno <eliotd@gmail.com>

samples/InteractionFramework/ExampleEnum.cs

@@ -1,3 +1,11 @@
+using Discord.Interactions;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
 namespace InteractionFramework
 {
     public enum ExampleEnum
@@ -5,6 +13,8 @@ namespace InteractionFramework
         First,
         Second,
         Third,
-        Fourth
+        Fourth,
+        [ChoiceDisplay("Twenty First")]
+        TwentyFirst
     }
 }