Add support for UTF-32

[aviiciii]

Description:
RapidCSV currently does not support CSV files encoded in UTF-32

How to reproduce it:

1. Create a CSV file encoded in UTF-32 (LE or BE).
2. Load the file using RapidCSV.

Environment:

• Version: 8.99
• OS / distro: All

[d99kris]

Thanks for the suggestion, I have converted the issue to a feature request. There are no plans to add support for this currently, but I'll leave it here for future consideration.

As usual, for others coming across this and need this feature, please help to upvote the top post.