feat: create creature interface

Client/Domain/Events/CreatureCreatedEvent.cs

@@ -7,13 +7,13 @@ using System.Threading.Tasks;
 
 namespace Client.Domain.Events
 {
-    public class NpcCreatedEvent : EventInterface
+    public class CreatureCreatedEvent : EventInterface
     {
-        public readonly NPC NPC;
+        public readonly CreatureInterface Creature;
 
-        public NpcCreatedEvent(NPC npc)
+        public CreatureCreatedEvent(CreatureInterface creature)
         {
-            NPC = npc;
+            Creature = creature;
         }
     }
 }

Client/Domain/Events/CreatureDeletedEvent.cs

@@ -7,11 +7,11 @@ using System.Threading.Tasks;
 
 namespace Client.Domain.Events
 {
-    public class NpcDeletedEvent : EventInterface
+    public class CreatureDeletedEvent : EventInterface
     {
         public readonly uint Id;
 
-        public NpcDeletedEvent(uint id)
+        public CreatureDeletedEvent(uint id)
         {
             Id = id;
         }