Added: ValidateCreditCard

[Yagasaki7K]

Based on https://github.com/Luciano655dev/better-format/issues/4

This change adds a new function called ValidateCreditCard to the code. The function is designed to validate credit card numbers using the Luhn algorithm, it's worth remembering that it will not verify if that number actually exists, just if it is a valid credit card number.

Function Details

The ValidateCreditCard function accepts a credit card number as input and performs the following checks:

• Removes non-numeric characters from the card number.
• Checks if the number is provided and has the correct length (16 digits).
• Applies the Luhn algorithm to validate the number.

This function can be useful for validating credit card numbers before processing transactions.

Please review and comment on any improvements or suggestions.

Thank you!

[Luciano655dev]

Tudo funcionando normalmente!

Vou atualizar a Doc e melhorar a função, obrigado por contribuir!