Add TMP icon support for roles

MiraAPI.Example/Roles/FreezerRole.cs

@@ -1,4 +1,5 @@
 using MiraAPI.Roles;
+using MiraAPI.Utilities.Assets;
 using UnityEngine;
 
 namespace MiraAPI.Example.Roles;
@@ -13,6 +14,8 @@ public class FreezerRole : ImpostorRole, ICustomRole
 
     public CustomRoleConfiguration Configuration => new CustomRoleConfiguration(this)
     {
+        Icon = MiraAssets.ImpostorFile,
+        IconTmp = TmpSpriteUtils.CreateSpriteAsset(MiraAssets.ImpostorFile.LoadAsset(), "ApiExample.Role.Impostor.FreezerRole"),
         OptionsScreenshot = ExampleAssets.Banner,
         MaxRoleCount = 2,
     };