Audible emotes (#12708)

Co-authored-by: Visne <39844191+Visne@users.noreply.github.com>

Content.Shared/Humanoid/Sex.cs

@@ -12,4 +12,10 @@ namespace Content.Shared.Humanoid
         Female,
         Unsexed,
     }
+
+    /// <summary>
+    ///     Raised when entity has changed their sex.
+    ///     This doesn't handle gender changes.
+    /// </summary>
+    public record struct SexChangedEvent(Sex OldSex, Sex NewSex);
 }