Massive upgrade

Welcome to the future of XT, this version has had massive changes, many improvements, a lot of refactoring to be as clean as possible.

Since there are too many changes for me to list, please refer to this page to see what was changed: https://github.com/azerty9971/xtend_tuya/releases

"180 file changed with 34,549 additions and 1,409 deletions. " should say it all :)