feat: responsive-markup live connect (backport #1172)

[mergify]

GitHub Issue (If applicable): #1167

PR Type

What kind of change does this PR introduce?

• Feature
• Refactor

What is the current behavior?

What is the new behavior?

• ResponsiveExtensions can now be connected/disconnected on the fly.
• ResponsiveHelper.SetOverrideSizeProvider can now be used to override the resizing behavior of ResponsiveViews and ResponsiveExtensions
• minor refactor of FindDependencyProperty:
  • added support to non-public dp
  • FindDependencyPropertyInfo can be used to retrieve more details of dp, such as its property type, its owner type and if it is attached or not

PR Checklist

Please check if your PR fulfills the following requirements:

• Tested code with current supported SDKs
• Tested the changes where applicable:
  • UWP
  • WinUI
  • iOS
  • Android
  • WASM
  • Skia
  • MacOS
• Updated the documentation as needed:
  • General Doc Update
  • Controls Doc Update
  • Extensions Doc Update
  • controls-styles.md
  • lightweight-styling.md (LightWeight Styling Resource Keys)
• Runtime Tests and/or UI Tests for the changes have been added (for bug fixes / features) (if applicable)
• Contains NO breaking changes
• Associated with an issue (GitHub or internal)
• Commits must be following the Conventional Commits specification.

Other information

.FindDependencyProperty(propertyName) no longer expects the "Property"-suffix. You are free to use either approach:

• typeof(FrameworkElement).FindDependencyProperty("Tag")
• typeof(FrameworkElement).FindDependencyProperty("TagProperty")

  ---

  This is an automatic backport of pull request feat: responsive-markup live connect #1172 done by Mergify.