Add new get_languages TVInfo Interface method that returns a list of dicts by the indexer supported languages and the sg_lang map code [{'id': 'lang code', 'name': 'english name', 'nativeName': 'native name', 'sg_lang': 'sg lang code'}].
Add all returned languages to webserve method.
Use new interface parameter language for get_show.
Cleanup most init warnings.
Cleanup some vars, pythonic instead of js.
Some typos and python var/func names for Scheduler.
Remove legacy handlers deprecated in 2020.
Remove some legacy tagged stuff.
Cleanup ConfigParser and 23.py
Change cleanup vendored scandir.
Remove redundant pkg_resources.py in favour of the vendor folder.
Remove backports.
Remove trakt checker.
Change remove redundant WindowsSelectorEventLoopPolicy from webserveInit.
Cleanup varnames and providers
Various minor tidy ups to remove ide warnings.
Fix reload show data if requested language changes.
Fix broken lang in tvdb api.
Change use language in all get_show tvinfo data calls.
Fix TMDB show language fallback check.
Fix add requested_language to tvinfo show cache.
Fix reset loaded statuses of cached show.
Fix TVDb image parsing.
