Update Vanara.WinUI.Extensions build environment

[tajbender]

Update Vanara.WinUI.Extensions to at least

• WinUI 3 v1.5 (stable)
• Vanara v4.5 (stable)
• .net .6

[tajbender]

Update build enviroment

[tajbender]

used default values, i don't need em

[tajbender]

used default values, i don't need em

[tajbender]

used default values, i don't need em

[tajbender]

used default values, i don't need em

[tajbender]

.idea config files should be removed.

[tajbender]

Needs updates and refactoring.
@dahall overhaul threading issues please

public class SoftwareBitmapSource : Microsoft.UI.Xaml.Media.Imaging.SoftwareBitmapSource
{
    public IconSize IconSize { get; }
    public SoftwareBitmapSource(IconSize iconSize) => IconSize = iconSize;
}

public static async Task<SoftwareBitmapSource> GetWinUi3BitmapSourceFromIcon(Icon bitmapIcon, IconSize iconSize)
{
    ArgumentNullException.ThrowIfNull(bitmapIcon);
    // TODO: use iconSize...: var hIcon = Shell32.SHGetFileInfo(..., (int)iconSize);
    return await GetWinUi3BitmapSourceFromGdiBitmap(bitmapIcon.ToBitmap());
}

if (gdiBitmap.PixelFormat != PixelFormat.Format32bppArgb)
    gdiBitmap = gdiBitmap.Clone(new Rectangle(0,0,w,h), PixelFormat.Format32bppArgb);

var ms = new MemoryStream();
icon.Save(ms);
ms.Position = 0;

var bmp = new BitmapImage();
bmp.SetSource(ms.AsRandomAccessStream());
return bmp;

[tajbender]

Update: I'll jump to Vanara v5+.

Current state:

Rebuilding environment, Cleaning up, putting WinUi Shell32 Controls into WinClassicSamplesBrowser for integration testing:

  https://github.com/tajbender/WinClassicSamplesCS/tree/App-Framework

  https://github.com/tajbender/WinClassicSamplesCS/tree/App-Framework/WinUiClassicSamplesBrowser