Added classic inverter support to the V1 API

[indykoning]

Summary

This PR adds support for classic inverters in the V1 API according to https://www.showdoc.com.cn/262556420217021/6118532122241417

Opening as draft since i haven't been able to test all functionalities, many calls fail if the inverter is offline.

TODO:

• test detail
• test energy - error_system error
• test energy_history - error_deviceIdError
• test read_parameter - (in my case) error_The collector does not support reading
• test write_parameter
• Add documentation

Checklist

• I've made sure the PR does small incremental changes. (new code additions are dificult to review when e.g. the entire repository got improved codestyle in the same PR.)
• I've added/updated the relevant docs for code changes i've made.