fix(core): Converts combat and container packets (#382)

- [X] Converts container packets
- [X] Converts combat packets

Projects/Server/Utilities/Utility.cs

@@ -1457,5 +1457,13 @@ namespace Server
         {
             set.RemoveWhere(entry => entry?.Deleted != false);
         }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int NumberOfSetBits(this ulong i)
+        {
+            i -= (i >> 1) & 0x5555555555555555UL;
+            i = (i & 0x3333333333333333UL) + ((i >> 2) & 0x3333333333333333UL);
+            return (int)(unchecked(((i + (i >> 4)) & 0xF0F0F0F0F0F0F0FUL) * 0x101010101010101UL) >> 56);
+        }
     }
 }