[MdChips] custom duplicated checking method

[VdustR]

As we have rejecting duplicated chip by comparing strings whether they are equal, I think we could add an optional props for the comparing method for cases like regarding apple and Apple as the same chip or regarding accent characters like e, è(String.fromCharCode(0x65, 0x300)), è(String.fromCharCode(0xe8)) as the same character.

[Samuell1]

Maybe we can use fuzzy search like table is using?