Reregister ghost role when player ghosts while alive (#5956)

* Reregister ghost role when player ghosts while alive

* Add ReregisterOnGhost property

Content.Server/Ghost/Roles/Components/GhostRoleComponent.cs

@@ -56,11 +56,18 @@ namespace Content.Server.Ghost.Roles.Components
         }
 
         [ViewVariables(VVAccess.ReadOnly)]
-        public bool Taken { get; protected set; }
+        public bool Taken { get; set; }
 
         [ViewVariables]
         public uint Identifier { get; set; }
 
+        /// <summary>
+        /// Reregisters the ghost role when the current player ghosts.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        [DataField("reregister")]
+        public bool ReregisterOnGhost { get; set; } = true;
+
         protected override void Initialize()
         {
             base.Initialize();