V2 SDK (#3)

* Add mise

* Update to v3 api

* Switch to AccountStatus

* Update dotnet versions

* Update github action

* Update github action

* Remove old dotnet versions

* Update to support latest dotnet

* Support dotnet 6 for testing

* Add latest dotnet support

* Use dotnet 9 to test all frameworks

* Update readme

* Add publish action

* Add changelog

Add nuget badge