Once upon a time there was liveresolver for Kodi. It got abandoned somewhere around late 2017.
Then there was livestreamer, a pure python library which someone had been packaging for Kodi which also got abandoned somewhere around late 2016.
Now there is streamlink and this is its upstream repository: https://github.com/streamlink/streamlink
I have been packaging it for Kodi since late 2017: https://github.com/Twilight0/script.module.streamlink.base
In order for new features to be added it would be better to submit your pull requests upstream. If you simply want to get the packaged version for your Kodi setup you can either get it from TVA's library repository or for faster updates my own as described in README here: