seperate some role configs

MiraAPI.Example/Roles/NeutralKillerRole.cs

@@ -16,9 +16,10 @@ public class NeutralKillerRole : ImpostorRole, ICustomRole
         UseVanillaKillButton = true,
         CanGetKilled = true,
         CanUseVent = true,
-        RoleGroup = new RoleGroup("Outcast", Color.gray),
     };
 
+    public RoleOptionsGroup RoleOptionsGroup { get; } = new("Outcast", Color.gray);
+
     public override void SpawnTaskHeader(PlayerControl playerControl)
     {
         // remove existing task header.