Handle duplicated items better

[MrSimbax]

The blacklist is not a perfect solution for duplicated items, as some of the duplicates are harmless, and the user might not want to hunt down the duplicate which works, which was chosen by me somehow arbitrarily. I see two ways to fix this:

1. Remove the harmless duplicates from the blacklist, and the lifepath filter, so the user can add whatever item they want as long as it's not already in the wardrobe.
2. When an item fails to be added, search through the records for items with same appearanceName, and try to add them instead. The one item which succeeds all the safety checks will be added, so little chance that it will be broken.