Test TextBox with a TextBoxMask.Mask and x:Bind

[Rosuavio]

Reopen #3512

Add UI tests for TextBox with a TextBoxMask.Mask and x:Bind
Uses WinUI Test Infrasttcure from #3482 to test the fix from #3338 for #3335.

PR Type

What kind of change does this PR introduce?

• Feature

• Build or CI related changes

What is the current behavior?

No UI Tests for TextBoxMask

What is the new behavior?

Given a TextBox with a Mask set and its Text bound to a C# property using x:Bind. It tests if the text in the TextBox updates when that property is updated.

PR Checklist

Please check if your PR fulfills the following requirements:

• Tested code with current supported SDKs
• [ ] Pull Request has been submitted to the documentation repository instructions. Link:
• ~~[ ] Sample in sample app has been added / updated (for bug fixes / features) ~~
  • ~~[ ] Icon has been created (if new sample) following the Thumbnail Style Guide and templates ~~
• Tests for the changes have been added (for bug fixes / features) (if applicable)
• Header has been added to all new source files (run build/UpdateHeaders.bat)
• Contains NO breaking changes

Other information

Does not test #3514

[ghost]

Thanks RosarioPulella for opening a Pull Request! The reviewers will test the PR and highlight if there is any conflict or changes required. If the PR is approved we will proceed to merge the pull request 🙌