Migration remove configs from tests

[MonkAlex]

Has test project with configs:

<None Include="..\Test.Environment\Services.config">
  <Link>Services.config</Link>
  <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  <SubType>Designer</SubType>
</None>
<None Include="..\Test.Environment\_Config.example">
  <Link>_Config.example</Link>
  <SubType>Designer</SubType>
</None>
<None Include="Domain.config">
  <SubType>Designer</SubType>
  <CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>

After migration found only one record in project:

<None Include="..\Test.Environment\_Config.example">
  <Link>_Config.example</Link>
  <SubType>Designer</SubType>
</None>

and configs not copy after build then tests failed.

[tom-englert]

Maybe this is related to #266