Added meta package smoke test

Author: Rosuavio

SmokeTests/Microsoft.Toolkit.Uwp.UI.Controls/MainPage.xaml

@@ -0,0 +1,12 @@
+<Page x:Class="SmokeTest.MainPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:controls="using:Microsoft.Toolkit.Uwp.UI.Controls"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+    <Grid>
+        <controls:Loading/>
+    </Grid>
+</Page>

SmokeTests/Microsoft.Toolkit.Uwp.UI.Controls/MainPage.xaml.cs

@@ -0,0 +1,14 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace SmokeTest
+{
+    public sealed partial class MainPage
+    {
+        public MainPage()
+        {
+            InitializeComponent();
+        }
+    }
+}

SmokeTests/SmokeTest.csproj

@@ -4,7 +4,7 @@
   <!-- - - - - - Don't check-in changes in between this lines. Used for development. - - - - - -->
   <PropertyGroup Condition="'$(CurrentProject)' == ''">
     <!-- When writting the SmokeTests, change this to whichever Toolkit project you want to build a test to, then reload the project -->
-    <CurrentProject>Microsoft.Toolkit.Uwp.UI.Controls.Core</CurrentProject>
+    <CurrentProject>Microsoft.Toolkit.Uwp.UI.Controls</CurrentProject>
   </PropertyGroup>
   <PropertyGroup Condition="'$(NuGetPackageVersion)' == ''">
     <NuGetPackageVersion>To Fill In With Local Version Number</NuGetPackageVersion>

SmokeTests/SmokeTests.proj

@@ -19,6 +19,7 @@
       Microsoft.Toolkit.Uwp.UI;
       Microsoft.Toolkit.Uwp.UI.Animations;
       Microsoft.Toolkit.Uwp.UI.Behaviors;
+      Microsoft.Toolkit.Uwp.UI.Controls;
       Microsoft.Toolkit.Uwp.UI.Controls.Core;
       Microsoft.Toolkit.Uwp.UI.Controls.DataGrid;
       Microsoft.Toolkit.Uwp.UI.Controls.Layout;