Adding SourceLink properties and NuGet package (#538)

Author: tmilnthorp

UnitsNet/UnitsNet.Common.props

@@ -25,11 +25,17 @@
     <!-- Workaround for building with dotnet CLI and targeting .NET 3.5: https://github.com/Microsoft/msbuild/issues/1333#issuecomment-296346352 -->
     <FrameworkPathOverride Condition="'$(TargetFramework)' == 'net35'">C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v3.5\Profile\Client</FrameworkPathOverride>
     <NoWarn>CS1701;CS1702;CS1705;CS0618;CS0809</NoWarn>
+
+    <!-- SourceLink -->
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
   </PropertyGroup>
 
   <!-- NuGet references that work for both signed and unsigned -->
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" Version="10.4.0" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-beta-63127-02" PrivateAssets="All"/>
   </ItemGroup>
 
   <!-- Exclude obj folder from default inclusion pattern -->