Blast door/shutter, timer and or gate device linking fixes (#16347)

Content.Server/DeviceLinking/Components/OrGateComponent.cs

@@ -0,0 +1,34 @@
+using Content.Server.MachineLinking.Events;
+
+namespace Content.Server.DeviceLinking.Components;
+
+[RegisterComponent]
+public sealed class OrGateComponent : Component
+{
+    // Initial state
+    [ViewVariables]
+    public SignalState StateA1 = SignalState.Low;
+
+    [ViewVariables]
+    public SignalState StateB1 = SignalState.Low;
+
+    [ViewVariables]
+    public SignalState LastO1 = SignalState.Low;
+
+    [ViewVariables]
+    public SignalState StateA2 = SignalState.Low;
+
+    [ViewVariables]
+    public SignalState StateB2 = SignalState.Low;
+
+    [ViewVariables]
+    public SignalState LastO2 = SignalState.Low;
+}
+
+public enum SignalState
+{
+    Momentary, // Instantaneous pulse high, compatibility behavior
+    Low,
+    High
+}
+