Suggestion: Add a warning to the Memorial Dungeon craft NPCs

The old Socket Enchant NPCs had a warning about carrying multiples of the same type of item:

https://github.com/HerculesWS/hercules/blob/master/npc/merchants/socket_enchant.txt#L241

mes "[Seiyablem]";
mes "Oh, there's also something really important that you should know.";
mes "If you ask me to add a Slot to something, make sure that you don't have multiples of it in your inventory.";
next;
mes "[Seiyablem]";
mes "Here's an example: if you have a +7 Manteau and a normal Manteau in your inventory, then I will randomly pick one of them for my Slot Addition attempt.";
mes "Just remember to be careful.";
next;
mes "[Seiyablem]";
mes "Again, ^FF0000only carry one of the equipment to which you want me to add a Slot^000000.";
mes "All other equipment with the same name should be placed in your Kafra Storage, got it?";

I suggest adding a similar warning to all the current and future Zero crafting NPCs that use equipment as an ingredient.