Add INI/JSON/.NETCONFIG, copy content to output by default

This makes the scenario of

    .AddJsonFile(...)
    .AddIniFile(...)
    .AddDotNetConfig()

work by default

Author: kzu

Smith.msbuildproj

@@ -6,10 +6,13 @@
     <PackageOutputPath>$(MSBuildThisFileDirectory)bin</PackageOutputPath>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="DotNetConfig.Configuration" Version="1.2.0" />
     <PackageReference Include="Microsoft.Extensions.AI" Version="9.5.0" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" Version="9.5.0-preview.1.25265.7" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.5" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="9.0.5" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Ini" Version="9.0.5" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.5" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.5" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.5" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.5" />

Smith.props

@@ -32,4 +32,8 @@
     <ProjectProperty Include="UserSecretsId" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Content Include="*.json;*.ini" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+
 </Project>

Smith.targets

@@ -0,0 +1,3 @@
+<Project>
+
+</Project>