Port LayoutTransformControl

[niels9001]

Porting the LayoutTransformControl, addressing: #82

• Tested on UWP, WASDK and WASM
• Visual improvements to the sample

[niels9001]

@Arlodotexe Could it be that Uno somehow doesn't include the Media bits? There is a "Uno TODO" comment in their branch: https://github.com/unoplatform/Uno.WindowsCommunityToolkit/blob/833fb61bd684f2796c16168f8047fb477abd4151/CommunityToolkit.WinUI.UI.Controls.Layout/LayoutTransformControl/LayoutTransformControl.cs#LL163C30-L163C30

It builds/run fine locally though..

[jeromelaban]

@Arlodotexe @niels9001 that's interesting. This particular class is built in Uno's fork, and I suspect that the // Uno todo was related to a type ambiguity with Matrix in very early versions of Uno.

We've made a lot of progress with matrix computation and transforms in general in Uno, so it's likely working fine now (the namespace does not clash anymore).

[michael-hawker]

Realizing that I'll need this if we want to do the Expander "extension" that I never finished... maybe that has to be a post 8.0 thing... hmmm 🤔

[jeromelaban]

@Arlodotexe My validation PR has shown that on Android, Matrix is a publicly accessible type that interferes with the default resolution scope, which means that the Matrix type needs to be fully qualified.