Add pathfinding support for NPCs climbing tables (#17415)

Content.Server/NPC/Pathfinding/PathFlags.cs

@@ -20,8 +20,13 @@ public enum PathFlags : byte
     /// </summary>
     Smashing = 1 << 2,
 
+    /// <summary>
+    /// Can we climb it like a table or railing.
+    /// </summary>
+    Climbing = 1 << 3,
+
     /// <summary>
     /// Can we open stuff that requires interaction (e.g. click-open doors).
     /// </summary>
-    Interact = 1 << 3,
+    Interact = 1 << 4,
 }