Muted status effect + 2 reagent sources of it (#8673)

Content.Shared/Speech/Muting/MutingSystem.cs

@@ -0,0 +1,21 @@
+using Content.Shared.Popups;
+using Robust.Shared.Player;
+
+namespace Content.Shared.Speech.Muting
+{
+    public sealed class MutingSystem : EntitySystem
+    {
+        [Dependency] private readonly SharedPopupSystem _popupSystem = default!;
+        public override void Initialize()
+        {
+            base.Initialize();
+            SubscribeLocalEvent<MutedComponent, SpeakAttemptEvent>(OnSpeakAttempt);
+        }
+
+        private void OnSpeakAttempt(EntityUid uid, MutedComponent component, SpeakAttemptEvent args)
+        {
+            _popupSystem.PopupEntity(Loc.GetString("speech-muted"), uid, Filter.Entities(uid));
+            args.Cancel();
+        }
+    }
+}