Adds door remotes from SS13 (#6335)

Content.Server/Remotes/DoorRemoteComponent.cs

@@ -0,0 +1,21 @@
+using Robust.Shared.Analyzers;
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.Remotes
+{
+    [RegisterComponent]
+    [Friend(typeof(DoorRemoteSystem))]
+    public class DoorRemoteComponent : Component
+    {
+        public override string Name => "DoorRemote";
+
+        public OperatingMode Mode = OperatingMode.OpenClose;
+
+        public enum OperatingMode : byte
+        {
+            OpenClose,
+            ToggleBolts
+            // ToggleEmergencyAccess
+        }
+    }
+}