Add implicit operators between System.Drawing.Color and Microsoft.Maui.Graphics.Color

[alikoli]

Description

Add implicit operators, similar as it was in Xamarin.Forms or make System.Drawing.Color a base class for Microsoft.Maui.Graphics.Color
Currently binding of System.Drawing.Color property from viemodel causes error (technically warning):
Microsoft.Maui.Controls.Xaml.Diagnostics.BindingDiagnostics: Warning: 'Color [White]' cannot be converted to type 'Microsoft.Maui.Graphics.Color'

Public API Changes

From Xamarin.Forms Color struct:

#if !NETSTANDARD1_0
public static implicit operator System.Drawing.Color(Color color)
{
if (color.IsDefault)
return System.Drawing.Color.Empty;
return System.Drawing.Color.FromArgb((byte)(color._a * 255), (byte)(color._r * 255), (byte)(color._g * 255), (byte)(color._b * 255));
}

	public static implicit operator Color(System.Drawing.Color color)
	{
		if (color.IsEmpty)
			return Color.Default;
		return FromRgba(color.R, color.G, color.B, color.A);
	}

#endif

Intended Use-Case

The ViewModels project is a class library shared between Xamarin.Forms and Maui projects as a project reference.
In ViewModels there is a lot of bindings which map to System.Drawing.Color.
ViewModels project attached to Xamarin.Forms works fine because implicit convertes exist. Because of suggested change this will be possible also in Maui projects and thousands of run time errors would be gone.

[GUELIANEBelkacem]

Any news on this? we are pretty much stuck without it as our shared code will not work on MAUI