ByoungYong Kim

Results 3 issues of ByoungYong Kim

## What I did 1. Aligned the way how the messages of IBAN validator is loaded with other validators - While many other validators override `getMessage()` **class** method by calling...

## What I did 1. Added a mixin called `CustomChoiceInputMixin` which lets us to create a choice input where the choiceValue can be set dynamically by user https://github.com/ing-bank/lion/assets/9986886/cc4940d1-4b57-4de2-b49d-031b4d04f5a3

## What I did Updated a test case where we reuse an element instead of creating new one.