Add package Microsoft.Extensions.Configuration

Author: cnblogs-dudu

tests/Sample/Sample.csproj

@@ -10,6 +10,7 @@
     <ProjectReference Include="..\..\src\Cuiliang.AliyunOssSdk.csproj" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="2.1.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="2.1.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.1.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.1.1" />