Machine Port Prototypes (#7659)

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Server/Explosion/Components/TriggerOnSignalComponent.cs

@@ -1,4 +1,5 @@
-using Robust.Shared.GameObjects;
+using Content.Shared.MachineLinking;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
 
 namespace Content.Server.Explosion.Components
 {
@@ -8,6 +9,7 @@ namespace Content.Server.Explosion.Components
     [RegisterComponent]
     public sealed class TriggerOnSignalComponent : Component
     {
-        public const string Port = "Trigger";
+        [DataField("port", customTypeSerializer: typeof(PrototypeIdSerializer<ReceiverPortPrototype>))]
+        public string Port = "Trigger";
     }
-}
+}