chore: Add support for .NET 6.0

Author: DevD4v3

Directory.Packages.props

@@ -3,8 +3,8 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.Configuration.Abstractions" Version="5.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
+    <PackageVersion Include="Microsoft.Extensions.Configuration.Abstractions" Version="6.0.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
     <PackageVersion Include="FluentAssertions" Version="6.10.0" />
     <PackageVersion Include="NUnit" Version="3.13.3" />

src/Core/CPlugin.Net.csproj

@@ -1,6 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
+    <TargetFramework></TargetFramework>
+    <TargetFrameworks>net6.0;net7.0</TargetFrameworks>
+    <LangVersion>latest</LangVersion>
     <RootNamespace>CPlugin.Net</RootNamespace>
     <PackageId>CPlugin.Net</PackageId>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>