feat(dict): allow support of multi dictionaries and min length

[yannickglt]

Allow to add dictionaries to the spell checker:

new JsSpellChecker({
  dicts: [
    {
      aff: __dirname + '/../node_modules/lintspelljs/dicts/en_US.aff',
      dic: __dirname + '/../node_modules/lintspelljs/dicts/en_US.dic'
    },
    __dirname + '/../dicts/english.dic',
    __dirname + '/../dicts/jetbrains.dic'
  ]
});

And allow to pass words less than a minimum length:

new JsSpellChecker({
  minLength: 4
});

With this parameter, words with a length less than minLength will not be checked. It's useful for single-letter words.

[yannickglt]

Is there a chance to merge this pull request @aotaduy?

[aotaduy]

Thanks for the PR! give me some time to review it.

[yannickglt]

Thanks a lot! I am not sure about the way to import dictionaries. Reading the file from at the beginning might be simpler and more testable.
For example:

new JsSpellChecker({
  dicts: [
    {
      aff: fs.readFileSync(__dirname + '/../node_modules/lintspelljs/dicts/en_US.aff'),
      dic: fs.readFileSync(__dirname + '/../node_modules/lintspelljs/dicts/en_US.dic')
    },
    fs.readFileSync(__dirname + '/../dicts/english.dic'),
    fs.readFileSync(__dirname + '/../dicts/jetbrains.dic')
  ]
});

[aotaduy]

Hello, I'm ready to merge this one. I like this one more than the other (#3) since I'm not sure about the capitalize functionality.
Can you tell me what would be the case to use the capitalization.

Best Regards

[yannickglt]

Hey!
I don't think capitalization is relevant anymore. I removed the pull request.
Thank you.

[aotaduy]

Thanks!