Support lower min versions of UWP too

Since those use the winmd version, need to include there too

Author: andrewleader

Microsoft.Toolkit.Uwp.Notifications/Microsoft.Toolkit.Uwp.Notifications.csproj

@@ -36,7 +36,7 @@
   </ItemGroup>
 
   <!-- In order to support .NET Native, we need to include an appropriate .rd.xml for UWP (remove from everything else) -->
-  <ItemGroup Condition="'$(TargetFramework)' != 'uap10.0.19041'">
+  <ItemGroup Condition="'$(TargetFramework)' != 'uap10.0.19041' and '$(TargetFramework)' != 'native'">
     <EmbeddedResource Remove="Properties\Microsoft.Toolkit.Uwp.Notifications.rd.xml" />
   </ItemGroup>