Feature/emoticon handler [resolves #264]

[ertugrul-dmr]

• Added emoticon support for tokenizers.
• Updated new argument for tokenizers (emoticon=True/False) works much like previous emoji, hashtag, mention handlers.
• Current regex covers most common emoticons you can find on social media and can be updated easily.
• Added and confirmed test cases for emoticon handlers.

Basic Usage:

from sadedegel.bblock.tokenizers import ICUTokenizer
text = "komik:))
tokenizer = ICUTokenizer(emoticon=False)
tokenizer(text)
>>output ['komik', ':', ')',')']

### if emoticon set to True:

tokenizer = ICUTokenizer(emoticon=True)
tokenizer(text)
>>output ['komik', ':))']

[dafajon]

Thanks for contribution. In addition, further in the PR can you report new results of social media/comment based prebuilt models optimized with this feature.

[ertugrul-dmr]

Thanks for contribution. In addition, further in the PR can you report new results of social media/comment based prebuilt models optimized with this feature.

Done, really small gains f1 wise, like ~0.005, but might be useful for more not preprocessed text datas...