Added Sourcelink

Author: ENikS

src/Unity.Microsoft.DependencyInjection.csproj

@@ -57,5 +57,19 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="2.2.0" /> 
   </ItemGroup>
 
+  <!-- Sourcelink -->
+  <PropertyGroup>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-beta2-18618-05">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="System.ValueTuple" Version="4.5.*" />
+  </ItemGroup>
 
 </Project>