Fix airlocks being opened by anything that bumps into them.

- Adds DoorBumpOpener component.

Content.Server/Doors/Components/DoorBumpOpenerComponent.cs

@@ -0,0 +1,10 @@
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.Doors.Components
+{
+    [RegisterComponent]
+    public class DoorBumpOpenerComponent : Component
+    {
+        public override string Name => "DoorBumpOpener";
+    }
+}

Content.Server/Doors/Systems/DoorSystem.cs

@@ -45,6 +45,11 @@ namespace Content.Server.Doors
 
         private void HandleCollide(EntityUid uid, ServerDoorComponent component, StartCollideEvent args)
         {
+            if (!args.OtherFixture.Body.Owner.HasComponent<DoorBumpOpenerComponent>())
+            {
+                return;
+            }
+
             if (component.State != SharedDoorComponent.DoorState.Closed)
             {
                 return;