Device network as ecs (#4205)

* Work on DeviceNetworkSystem

* Implement device networking as ecs
Remove mailing unit code for now
Remove device network metadata

* Implement integration tests for device networking

* Remove manual updating DeviceNetworkSystem and use WaitRunTicks

* Fix wrong component name in ignored components

* Apply suggestions from code review

Co-authored-by: mirrorcult <notzombiedude@gmail.com>

* Rename NetworkUtils to DeviceNetworkConstants
Change connection type constants to enum
Remove create function from network payload class

* Change broken nodegroup check in wirenet to grid check

* Change ComponentManager to entity manager in DeviceNetworkSystem

* Fix smaller mistakes

* Wtf random test fail pls run them again smh

* Fix DataField in DeviceNetworkComponent

* Fix yaml in DeviceNetworkTest

* Fix DeviceNetworkComponent DeviceNetId property

Co-authored-by: Julian Giebel <j.giebel@netrocks.info>
Co-authored-by: mirrorcult <notzombiedude@gmail.com>

Content.Server/DeviceNetwork/Components/DeviceNetworkComponent.cs

@@ -0,0 +1,35 @@
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization.Manager.Attributes;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Server.DeviceNetwork.Components
+{
+    [RegisterComponent]
+    public class DeviceNetworkComponent : Component
+    {
+        public override string Name => "DeviceNetworkComponent";
+
+        /// <summary>
+        /// The device networks netID this DeviceNetworkComponent connects to.
+        /// The netID is used to seperate device networks that shouldn't interact with each other e.g. wireless and wired.
+        /// The default netID's are_
+        /// 0 -> Private
+        /// 1 -> Wired
+        /// 2 -> Wireless
+        /// </summary>
+        [DataField("deviceNetId")]
+        public int DeviceNetId { get; set; } = (int)DeviceNetworkConstants.ConnectionType.Private;
+
+        [DataField("frequency")]
+        public int Frequency { get; set; } = 0;
+
+        [ViewVariables]
+        public bool Open;
+
+        [ViewVariables]
+        public string Address = string.Empty;
+
+        [DataField("receiveAll")]
+        public bool ReceiveAll;
+    }
+}