message: Add temporary program entry point in unit tests for troubleshooting as MSTest framework hides console output.
diff: <TargetFrameworks>netcoreapp2.0</TargetFrameworks>
  <AssemblyName>Hyperledger.Indy.Sdk.Test</AssemblyName>
  <RootNamespace>Hyperledger.Indy.Test</RootNamespace>
  + <StartupObject>Hyperledger.Indy.Test.Program</StartupObject>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|net45|AnyCPU'">
  