Hide IPC test program from code coverage

The InterProcessCommunication console test app is showing up in our code
coverage report.  It's part of the test harness and can be excluded.

Author: stephentoub

src/Scenarios/tests/InterProcessCommunication/InterProcessCommunication.TestConsoleApp/InterProcessCommunication.TestConsoleApp.csproj

@@ -13,6 +13,9 @@
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' " />
   <ItemGroup>
     <Compile Include="TestConsoleApp.cs" />
+    <Compile Include="$(CommonPath)\System\Diagnostics\CodeAnalysis\ExcludeFromCodeCoverageAttribute.cs">
+      <Link>Common\System\Diagnostics\CodeAnalysis\ExcludeFromCodeCoverageAttribute.cs</Link>
+    </Compile>
   </ItemGroup>
   <ItemGroup>
     <None Include="project.json" />

src/Scenarios/tests/InterProcessCommunication/InterProcessCommunication.TestConsoleApp/TestConsoleApp.cs

@@ -4,6 +4,8 @@
 using System;
 using System.Reflection;
 
+[assembly: System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
+
 namespace InterProcessCommunication.Tests
 {
     /// <summary>