Change Accessors for UWP Specific APIs to public [Xamarin Community Toolkit]

[SkyeHoefling]

Description of Change

Changed accessor modifier for several UWP APIs from internal to public. This is required as part of the Xamarin Community Toolkit implementation of the Popup control.

Related to xamarin/XamarinCommunityToolkit#292

Issues Resolved

• related to [Spec] APIS That need to be made public for contributors and Xamarin Community Tookit #12136

API Changes

Changed:
Platform.cs

• internal static Platform Current => public static Platform Current

VisualElementExtensions.cs

• internal static void Cleanup => public static void Cleanup

PageExtensions.cs

• internal static FrameworkElement ToFrameworkElement => public static FrameworkElement ToFrameworkElement

Platforms Affected

• UWP

Behavioral/Visual Changes

None

Before/After Screenshots

Not applicable

Testing Procedure

Not applicable

PR Checklist

• Targets the correct branch
• Tests are passing (or failures are unrelated)

[PureWeen]

@ahoefling These methods are all pretty unexciting

Can you just copy the behavior of these into essentials?

Aspects of these might need to change inside forms so just a little bit worried about opening them up.

FYI @jfversluis @jsuarezruiz

[SkyeHoefling]

I've been chatting with @PureWeen about this PR and everything I requested to be opened up for the Xamarin Community Toolkit can be re-implemented or use another strategy to get Popups working in UWP.

I don't need this merged and I am going to close the PR