Support getting type name.

PkmnLibSharp/Library/TypeLibrary.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using PkmnLibSharp.Utilities;
 
 namespace PkmnLibSharp.Library
@@ -56,6 +57,20 @@ namespace PkmnLibSharp.Library
             return f;
         }
 
+        public string GetTypeName(byte typeId)
+        {
+            foreach (var kv in _cache.Where(kv => kv.Value == typeId))
+            {
+                return kv.Key;
+            }
+
+            var ptr = IntPtr.Zero;
+            Creaturelib.Generated.TypeLibrary.GetTypeName(ref ptr, Ptr, typeId).Assert();
+            var s = ptr.PtrString();
+            _cache[s] = typeId;
+            return s;
+        }
+
         protected override void DeletePtr()
         {
             Creaturelib.Generated.TypeLibrary.Destruct(Ptr);