Added missing image for Shape detection on UWP demo.

Emgu.CV.Example/XamarinForms/UWP/XamarinForms.UWP.csproj

@@ -102,6 +102,10 @@
       <Link>lena.jpg</Link>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="..\Core\pic3.png">
+      <Link>pic3.png</Link>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <Content Include="..\Core\stop-sign.jpg">
       <Link>stop-sign.jpg</Link>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
@@ -169,7 +173,7 @@
       <Version>5.0.1</Version>
     </PackageReference>
     <PackageReference Include="Xamarin.Forms">
-      <Version>4.5.0.617</Version>
+      <Version>4.6.0.726</Version>
     </PackageReference>
     <PackageReference Include="Xamarin.Plugin.FilePicker">
       <Version>2.1.34</Version>