adds toggles for accessreaders (#5696)

Content.Server/Access/Components/AccessReaderComponent.cs

@@ -25,6 +25,13 @@ namespace Content.Server.Access.Components
     {
         public override string Name => "AccessReader";
 
+        /// <summary>
+        ///     Whether this reader is enabled or not. If disabled, all access
+        ///     checks will pass.
+        /// </summary>
+        [ViewVariables(VVAccess.ReadWrite)]
+        public bool Enabled = true;
+
         /// <summary>
         ///     The set of tags that will automatically deny an allowed check, if any of them are present.
         /// </summary>

Content.Server/Access/Systems/AccessReaderSystem.cs

@@ -60,7 +60,7 @@ namespace Content.Server.Access.Systems
                 return false;
             }
 
-            return reader.AccessLists.Count == 0 || reader.AccessLists.Any(a => a.IsSubsetOf(accessTags));
+            return !reader.Enabled || reader.AccessLists.Count == 0 || reader.AccessLists.Any(a => a.IsSubsetOf(accessTags));
         }
 
         public ICollection<string> FindAccessTags(EntityUid uid)