Add Ethui

[ZePedroResende]

Please check if what you want to add to awesome-foundry list meets quality standards before sending pull request. Thanks!

Please provide package links to:

• repo link (github.com, gitlab.com, etc):
  https://github.com/ethui/
  https://github.com/ethui/ethui
• coverage service link (codecov, coveralls)

Note: that new categories can be added only when there are 3 packages or more.

Make sure that you've checked the boxes below before you submit PR:
not every repository (project) will fit into every option, but most projects should

• I have added my package in alphabetical order.
• I have an appropriate description with correct grammar.
• I know that this package was not listed before.
• I have added link to the repo and to my pull request.
• I have added coverage service link to the repo and to my pull request.
• I have read Contribution guidelines, maintainers note and Quality standard.

Thanks for your PR, you're awesome! 👍

[ZePedroResende]

Hey @RamsesAupart you approved with read-only permissions , i can't merge this 😅