Normalizing fancy characters

[GokulNC]

Thanks for making the library, it's really helpful in my case for cleaning social media texts.

Here are some cases where the transliteration/conversion was not correct (Version 1.3.2):

>>> from unidecode import unidecode
>>> unidecode("ᕼᗩᑭᑭIᗴᗴ")
'hpokikiIgaga'
>>> unidecode("🇦🇷🇮")
''
>>> unidecode("ωεłł")
'oell'
>>> unidecode("RᗅIPႮ")
'RghoIPP'
>>> unidecode("ғʀᴇᴇ")
"g'REE"

I will update this issue with more examples as I come across. Thanks!

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Edit:

It looks like most of the issues is because they are characters of some other scripts, not fancy characters. So, is there some way to do appearance-based conversion rather than approximate-phonetic conversion?