Unified language codes --> #9

[acerjay]

Unified language code support for most of the TTS engines. #9
Can be modified to convert into alpha code (three character string)

[willwade]

Great. Don't do this yet - this is more a comment for me. I think we need to keep dialect / region info. This is actually tough because it needs reimagining what the final dict looks like but here's an idea

def getISOLangCode(dialect: str) -> Tuple[str, str]:
    try:
        language = str(Language.get(dialect))
    except Exception as dialectError:
        dialect = dialect.split('-')[0]
        language = str(Language.get(dialect))
    
    region = dialect.split('-')[1] if '-' in dialect else ""
    return (language, region)

# Example usage
langcode, region = getISOLangCode("en-US")
print(langcode)  # Output: 'en'
print(region)    # Output: 'US'

[willwade]

I need to review this but @acerjay can you just dump a output of get_voices when you get a mo to see the difference. My only concern is we are adding another non-optional depdenency and its a big one - of langcodes. So being cautious on this one!