Merge pull request #285 from ctaggart/sourcelink

enable SourceLink

Author: darrelmiller

build.cmd

@@ -1,7 +1,7 @@
 @echo off
 if "%~1"=="" goto :error
 
-SET %VERSION%=%~1
+SET VERSION=%~1
 
 Echo Building Microsoft.OpenApi
 

src/Directory.Build.props

@@ -0,0 +1,8 @@
+<Project>
+  <PropertyGroup>
+    <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-*" PrivateAssets="All"/>
+  </ItemGroup>
+</Project>