Added Whisper system for talking with players 2 tiles away. (#5994)

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

Content.Server/Chat/Commands/WhisperCommand.cs

@@ -0,0 +1,44 @@
+using Content.Server.Chat.Managers;
+using Content.Shared.Administration;
+using Robust.Server.Player;
+using Robust.Shared.Console;
+using Robust.Shared.Enums;
+using Robust.Shared.IoC;
+
+namespace Content.Server.Chat.Commands
+{
+    [AnyCommand]
+    internal class WhisperCommand : IConsoleCommand
+    {
+        public string Command => "whisper";
+        public string Description => "Send chat messages to the local channel as a whisper";
+        public string Help => "whisper <text>";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            if (shell.Player is not IPlayerSession player)
+            {
+                shell.WriteError("This command cannot be run from the server.");
+                return;
+            }
+
+            if (player.Status != SessionStatus.InGame)
+                return;
+
+            if (player.AttachedEntity is not {} playerEntity)
+            {
+                shell.WriteError("You don't have an entity!");
+                return;
+            }
+
+            if (args.Length < 1)
+                return;
+
+            var message = string.Join(" ", args).Trim();
+            if (string.IsNullOrEmpty(message))
+                return;
+
+            IoCManager.Resolve<IChatManager>().TrySpeak(playerEntity, message, true, shell, player);
+        }
+    }
+}