[UWP] Inherit from Panel on WrapperControl (#1204)

* [UWP] Inherit from Panel on WrapperControl

* Fix typo

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla60056.cs

@@ -0,0 +1,38 @@
+using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.Internals;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls.Issues
+{
+	[Preserve(AllMembers = true)]
+	[Issue(IssueTracker.Bugzilla, 60056, "[UWP] ViewCell ignores margins of it's child", PlatformAffected.UWP)]
+	public class Bugzilla60056 : TestContentPage
+	{
+		protected override void Init()
+		{
+			Content = new ListView
+			{
+				ItemsSource = new string[] { "A", "B", "C" },
+				ItemTemplate = new DataTemplate(() =>
+				{
+					return new ViewCell
+					{
+						View = new StackLayout
+						{
+							Margin = 20,
+							Children =
+							{
+								new Label {  Text = "I should be indented" },
+								new Button { Margin = 5, Text = "I should be further indented" }
+							}
+						}
+					};
+				})
+			};
+		}
+	}
+}

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems

@@ -222,6 +222,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla51427.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla59248.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla59580.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Bugzilla60056.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla59863_0.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla59863_1.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla59863_2.cs" />

Xamarin.Forms.Platform.WinRT/ViewToRendererConverter.cs

@@ -37,7 +37,7 @@ namespace Xamarin.Forms.Platform.WinRT
 			throw new NotSupportedException();
 		}
 
-		class WrapperControl : Canvas
+		class WrapperControl : Panel
 		{
 			readonly View _view;