Disposal mailing (#2194)

* Implement device networking

* Implement device configuration menu

* Fix device network

* Implement disposal mailing unit

* Implement base network connection
Implement wired and wireless network connection
Implement device network metadata

* Fix dereference null error

* Fix wired network null checks

* Change BaseNetworks enum to NetworkUtils class
Add PingResponse function to NetworkUtils
Change device network file structure

* Add doc comments

* Apply suggestions from code review

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

* Add tag validation to disposal mailing unit

* Add tag validation to the mailing unit component

* Address reviews
Change WiredNetwork can connect check
Change device networking string literals to constants

* Address reviews
Revert changes to PowerProvider and PowerReceiver
Add new NodeGroup
WELP

* Fix recursive access to Owner property

* Integrate suggested changes

* Fix TryGetWireNet acting on NullPowerProvider
Fix network connections not checking if their owner has been deleted

* Close device network connection when the owning entity got deleted
Fix mailing unit not closing the device network connection on remove

* Remove GetWireNet from NullPowerProvider

Co-authored-by: Julian Giebel <j.giebel@netrocks.info>
Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>

Content.Server/Interfaces/IDeviceNetworkConnection.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Content.Server.Interfaces
+{
+    public interface IDeviceNetworkConnection
+    {
+        public int Frequency { get; }
+        /// <summary>
+        /// Sends a package to a specific device
+        /// </summary>
+        /// <param name="frequency">The frequency the package should be send on</param>
+        /// <param name="address">The target devices address</param>
+        /// <param name="payload"></param>
+        /// <returns></returns>
+        public bool Send(int frequency, string address, Dictionary<string, string> payload);
+        /// <see cref="Send(int, string, Dictionary{string, string})"/>
+        public bool Send(string address, Dictionary<string, string> payload);
+        /// <summary>
+        /// Sends a package to all devices
+        /// </summary>
+        /// <param name="frequency">The frequency the package should be send on</param>
+        /// <param name="payload"></param>
+        /// <returns></returns>
+        public bool Broadcast(int frequency, Dictionary<string, string> payload);
+        /// <see cref="Broadcast(int, Dictionary{string, string})"/>
+        public bool Broadcast(Dictionary<string, string> payload);
+    }
+}