Added commands to assign business to user

Server/Entities/User.cs

@@ -58,6 +58,8 @@ namespace reallife_gamemode.Server.Entities
         public int? FactionRankId { get; set; }
         public FactionRank FactionRank { get;set; }
 
+        public int? BusinessId { get; set; }
+
         public Faction GetFaction()
         {
             using(var context = new DatabaseContext())