Add SourceLink support

Author: martincostello

build/dependencies.props

@@ -9,6 +9,7 @@
     <JsonNetVersion>10.0.3</JsonNetVersion>
     <JustEatHttpClientInterceptionVersion>2.0.1</JustEatHttpClientInterceptionVersion>
     <MartinCostelloLoggingXUnitVersion>0.1.0</MartinCostelloLoggingXUnitVersion>
+    <MicrosoftSourceLinkGitHubVersion>1.0.0-beta2-19270-01</MicrosoftSourceLinkGitHubVersion>
     <ShouldlyVersion>3.0.2</ShouldlyVersion>
     <XunitVersion>2.4.1</XunitVersion>
   </PropertyGroup>

build/packages.props

@@ -7,6 +7,8 @@
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)key.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
     <PublicSign Condition=" '$(OS)' != 'Windows_NT' ">true</PublicSign>
+    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
+    <EmbedUntrackedSources>true</EmbedUntrackedSources>
     <IncludeSource>true</IncludeSource>
     <IncludeSymbols>true</IncludeSymbols>
   </PropertyGroup>
@@ -16,8 +18,13 @@
     <PackageIconUrl>https://avatars3.githubusercontent.com/u/7998081?s=64</PackageIconUrl>
     <PackageProjectUrl>https://github.com/aspnet-contrib/AspNet.Security.OpenId.Providers</PackageProjectUrl>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <RepositoryType>git</RepositoryType>
     <RepositoryUrl>git://github.com/aspnet-contrib/AspNet.Security.OpenId.Providers</RepositoryUrl>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="$(MicrosoftSourceLinkGitHubVersion)" PrivateAssets="All" />
+  </ItemGroup>
+
 </Project>