Set BaseOutputPath conditionally so LUT works

As per https://docs.microsoft.com/en-us/visualstudio/test/live-unit-testing-faq

src/Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
     <BaseIntermediateOutputPath>$(MSBuildThisFileDirectory)..\obj\$(MSBuildProjectName)\</BaseIntermediateOutputPath>
-    <OutputPath>$(MSBuildThisFileDirectory)..\bin\$(MSBuildProjectName)\$(Configuration)\</OutputPath>
+    <BaseOutputPath Condition=" '$(BaseOutputPath)' == '' ">$(MSBuildThisFileDirectory)..\bin\$(MSBuildProjectName)\</BaseOutputPath>
   </PropertyGroup>
   <ItemGroup>
   	<PackageReference Include="Nerdbank.GitVersioning" Version="1.6.25" PrivateAssets="all" />