Adds Handheld Radio/Listener system (#1457)

* re-do of old PR that got fuckied upp

* simplify foreach as suggested

* pass distance to PassSpeechData for a check, remove GetListenRange()

* adds RadioQuery instead of subscribing/unsubscribing

* change SpreadMessage to accept owner rather than component

* change RadioQuery to EntityQuery

* remove declared EntityQuery (oops, didn't know what shadowcommander meant)

* refactor ListeningSystem & refactor added chat logic into listen sys

* IGNORE the oopsie STOP LOOKING

Content.Server/GameObjects/Components/RadioComponent.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Content.Server.GameObjects.EntitySystems;
+using Content.Server.Interfaces;
+using Content.Server.Interfaces.Chat;
+using Content.Server.Interfaces.GameObjects.Components.Interaction;
+using Content.Shared.Interfaces.GameObjects.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.GameObjects.Components;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Server.GameObjects.Components.Interactable
+{
+    [RegisterComponent]
+    class RadioComponent : Component, IUse, IListen
+    {
+#pragma warning disable 649
+        [Dependency] private readonly IEntitySystemManager _entitySystemManager = default!;
+        [Dependency] private readonly IServerNotifyManager _notifyManager = default!;
+#pragma warning restore 649
+
+        public override string Name => "Radio";
+
+        private bool _radioOn;
+        private int _listenRange = 7;
+        private RadioSystem _radioSystem = default!;
+
+        [ViewVariables]
+        public bool RadioOn
+        {
+            get => _radioOn;
+            private set
+            {
+                _radioOn = value;
+                Dirty();
+            }
+        }
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            _radioSystem = _entitySystemManager.GetEntitySystem<RadioSystem>();
+
+            RadioOn = false;
+        }
+
+        public void PassOnMessage(string message)
+        {
+            if(RadioOn)
+            {
+                _radioSystem.SpreadMessage(Owner, message);
+            }
+        }
+
+        public void Speaker(string message)
+        {
+            var chat = IoCManager.Resolve<IChatManager>();
+            chat.EntitySay(Owner, message);
+        }
+
+        public bool UseEntity(UseEntityEventArgs eventArgs)
+        {
+            RadioOn = !RadioOn;
+            if(RadioOn)
+            {
+                _notifyManager.PopupMessage(Owner, eventArgs.User, "The radio is now on.");
+            }
+            else
+            {
+                _notifyManager.PopupMessage(Owner, eventArgs.User, "The radio is now off.");
+            }
+            return true;
+        }
+
+        public void HeardSpeech(string speech, IEntity source)
+        {
+            PassOnMessage(speech);
+        }
+
+        public int GetListenRange()
+        {
+            return _listenRange;
+        }
+    }
+}