feat(TextBlock): [Skia] Skia-based TextBox Implementation

[mikernet]

GitHub Issue (If applicable): closes #9417

PR Type

What kind of change does this PR introduce?

• Feature

What is the current behavior?

Native WPF/GTK text boxes are overlaid when the text box received focus.

What is the new behavior?

Skia-based implementation which does not depend on native controls available behind a feature configuration switch.

PR Checklist

Please check if your PR fulfills the following requirements:

• [ ] Docs have been added/updated which fit documentation template (for bug fixes / features)
• [ ] Unit Tests and/or UI Tests for the changes have been added (for bug fixes / features) (if applicable)
• [ ] Validated PR Screenshots Compare Test Run results.
• [ ] Contains NO breaking changes
• [ ] Associated with an issue (GitHub or internal) and uses the automatic close keywords.
• [ ] Commits must be following the Conventional Commits specification.

Other information

Internal Issue (If applicable):

[gitpod-io[bot]]

[jeromelaban]

Thanks for your contribution. The work is being superseded by https://github.com/unoplatform/uno/pull/13901.