Support AOT

Hello, would it be possible to utilize the [System.Text.Json Source Generators](https://learn.microsoft.com/en-us/dotnet/standard/serialization/system-text-json/source-generation) instead of the reflection-based approach?

In my app I have the reflection-based json serializing deactivated which resulted in the following exception occurring:
```
System.InvalidOperationException:
'Reflection-based serialization has been disabled for this application. Either use the source generator APIs or explicitly configure the 'JsonSerializerOptions.TypeInfoResolver' property.'
```

This would also be a step to make the library Native AOT compatible by default. 🙂