Add zh-HK README translation for README. It was wrote in Traditional Chinese Hong Kong style.
Add Traditional Chinese translation resource and make PKHeX support for tradition Chinese.
Big thanks to @SciresM @sora10pls @Lusamine @architdate @ReignOfComputer for testing and contributing code / test cases. Can't add co-authors from the PR menu :(
Builds will fail because azure pipelines not yet updated with net6.