pdb files (symbols) in nupkgs

source/AndroidSupportProject.cshtml

@@ -30,6 +30,8 @@
     <PackageIconUrl>https://raw.githubusercontent.com/xamarin/AndroidSupportComponents/master/icons/@(Model.Name)_128x128.png</PackageIconUrl>
     <PackageVersion>@(Model.NuGetVersion)</PackageVersion>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <!-- Include symbol files (*.pdb) in the built .nupkg -->
+    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
   </PropertyGroup>
 
   <PropertyGroup>