Sex restriction for markings (#19894)

* Add sex restriction to markings

* Apply to existing systems

Content.Shared/Humanoid/Markings/MarkingsSet.cs

@@ -199,6 +199,40 @@ public sealed partial class MarkingSet
         }
     }
 
+    /// <summary>
+    ///     Filters markings based on sex and it's restrictions in the marking's prototype from this marking set.
+    /// </summary>
+    /// <param name="sex">The species to filter.</param>
+    /// <param name="markingManager">Marking manager.</param>
+    public void EnsureSexes(Sex sex, MarkingManager? markingManager = null)
+    {
+        IoCManager.Resolve(ref markingManager);
+
+        var toRemove = new List<(MarkingCategories category, string id)>();
+
+        foreach (var (category, list) in Markings)
+        {
+            foreach (var marking in list)
+            {
+                if (!markingManager.TryGetMarking(marking, out var prototype))
+                {
+                    toRemove.Add((category, marking.MarkingId));
+                    continue;
+                }
+
+                if (prototype.SexRestriction != null && prototype.SexRestriction != sex)
+                {
+                    toRemove.Add((category, marking.MarkingId));
+                }
+            }
+        }
+
+        foreach (var remove in toRemove)
+        {
+            Remove(remove.category, remove.id);
+        }
+    }
+
     /// <summary>
     ///     Ensures that all markings in this set are valid.
     /// </summary>