ENH: Update extension metadata

[jcfr]

Consolidate extension metadata based on the corresponding s4ext file organized
in the ExtensionsIndex repository.

[jcfr]

Please, could this be reviewed & merged 🙏

[jcfr]

Email sent on June 12th 2024 to @faustomilletari with @lassoan in cc:

Subject: Help to merge https://github.com/faustomilletari/TOMAAT-Slicer/pull/16 pull request

Hi Fausto,

When you have a chance, we would appreciate your help to merge the following pull request:

  ENH: Update extension metadata
  https://github.com/faustomilletari/TOMAAT-Slicer/pull/16

Changes are trivial as they include updates to the extension metadata.

Thanks
J-Christophe

[jcfr]

@faustomilletari Thanks for taking the time to follow-up 🙏 🚀