added .net framework and standard to targets

Author: lorenzomaiuri-dev

CodiceFiscale/CodiceFiscale.csproj

@@ -1,9 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;netstandard2.0;net472</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -19,6 +20,11 @@
     <RepositoryUrl>https://github.com/lorenzomaiuri-dev/CodiceFiscale</RepositoryUrl>
   </PropertyGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' Or '$(TargetFramework)' == 'net472'">
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
+  </ItemGroup>
+
+
 
   <ItemGroup>
     <None Update="data/countries.json" Pack="true" PackagePath="contentFiles\any\any;content">

CodiceFiscaleTest/CodiceFiscaleTest.csproj

@@ -1,10 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;net472</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-
+    <LangVersion>latest</LangVersion>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
   </PropertyGroup>